Hi there,
Have been running a persistent mission for a day or two now, have gone to save our mission and have had around 10-20 minutes of continued log spam after some initial good looking debug log.

ALiVE Exit - Saving Server
ADMIN UID: 76561198136089714
ADMIN: Hitman3
"Saving shots fired: [["",0,"",""]]"
ALiVE Pausing state of ALiVE_ALiVE_sys_profile instance set to true!
ALiVE Pausing state of ALiVE_ALiVE_mil_command instance set to true!
ALiVE Pausing state of ALiVE_ALiVE_fnc_analysis instance set to true!
ALiVE Pausing state of ALiVE_ALiVE_mil_logistics instance set to true!
Server: Object 46:36 not found (message Type_91)
Server: Object 5:209 not found (message Type_119)
Server: Object 72:332 not found (message Type_91)
ALIVE AI Distributor switching group B Alpha 2-2 to HC Headless_Client
Server: Object 21:32 not found (message Type_119)
ALIVE AI Distributor switching group B Alpha 2-3 to HC Headless_Client
Server: Object 72:332 not found (message Type_91)
Server: Object 72:333 not found (message Type_91)
ALIVE AI Distributor switching group B Alpha 1-3 to HC Headless_Client
ALIVE AI Distributor switching group R Alpha 2-2 to HC Headless_Client
ALIVE AI Distributor switching group R Alpha 2-3 to HC Headless_Client
ALIVE AI Distributor switching group C Alpha 2-3 to HC Headless_Client
Server: Object 21:31 not found (message Type_91)
Server: Object 21:32 not found (message Type_91)
ALIVE AI Distributor switching group O Alpha 1-2 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 2-2 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 2-3 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 3-1 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 3-2 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 3-3 to HC Headless_Client
ALIVE AI Distributor switching group O Bravo 1-2 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 1-3 to HC Headless_Client
ALIVE AI Distributor switching group B Alpha 2-2 to HC Headless_Client
ALIVE AI Distributor switching group B Alpha 2-3 to HC Headless_Client
ALIVE AI Distributor switching group B Alpha 1-3 to HC Headless_Client
ALIVE AI Distributor switching group R Alpha 2-2 to HC Headless_Client
ALIVE AI Distributor switching group R Alpha 2-3 to HC Headless_Client
ALIVE AI Distributor switching group C Alpha 2-3 to HC Headless_Client
Server: Object 72:332 not found (message Type_91)
Server: Object 72:333 not found (message Type_91)
Server: Object 72:333 not found (message Type_119)
Server: Object 72:332 not found (message Type_119)
Server: Object 21:32 not found (message Type_91)
Server: Object 21:31 not found (message Type_91)
ALIVE AI Distributor switching group O Alpha 1-2 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 2-2 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 2-3 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 3-1 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 3-2 to HC Headless_Client
Server: Object 21:31 not found (message Type_119)
ALIVE AI Distributor switching group O Alpha 3-3 to HC Headless_Client
ALIVE AI Distributor switching group O Bravo 1-2 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 1-3 to HC Headless_Client
ALIVE AI Distributor switching group B Alpha 2-2 to HC Headless_Client
ALIVE AI Distributor switching group B Alpha 2-3 to HC Headless_Client
Server: Object 21:32 not found (message Type_119)
ALIVE AI Distributor switching group B Alpha 1-3 to HC Headless_Client
ALIVE AI Distributor switching group R Alpha 2-2 to HC Headless_Client
ALIVE AI Distributor switching group R Alpha 2-3 to HC Headless_Client
ALIVE AI Distributor switching group C Alpha 2-3 to HC Headless_Client
Server: Object 72:333 not found (message Type_91)
Server: Object 72:332 not found (message Type_91)
Server: Object 21:31 not found (message Type_91)
Server: Object 21:32 not found (message Type_91)
ALIVE AI Distributor switching group O Alpha 1-2 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 2-2 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 2-3 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 3-1 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 3-2 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 3-3 to HC Headless_Client
ALIVE AI Distributor switching group O Bravo 1-2 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 1-3 to HC Headless_Client
ALIVE AI Distributor switching group B Alpha 2-2 to HC Headless_Client
["SYS_STATS: PLAYER UNIT FOUND IN PLAYABLEUNITS (Hitman3)"]
ALIVE AI Distributor switching group B Alpha 2-3 to HC Headless_Client
"Saving shots fired: [["",0,"",""]]"
ALIVE AI Distributor switching group B Alpha 1-3 to HC Headless_Client
ALIVE AI Distributor switching group R Alpha 2-2 to HC Headless_Client
ALIVE AI Distributor switching group R Alpha 2-3 to HC Headless_Client
ALIVE AI Distributor switching group C Alpha 2-3 to HC Headless_Client
Server: Object 72:333 not found (message Type_119)
Server: Object 72:332 not found (message Type_119)
Server: Object 72:332 not found (message Type_91)
Server: Object 72:333 not found (message Type_91)
Server: Object 21:31 not found (message Type_91)
Server: Object 21:32 not found (message Type_91)
Client: Remote object 81:0 not found
[ACE] (common) WARNING: ace_common_fnc_execRemoteFnc is deprecated. Support will be dropped in version 3.7.0. Replaced by: ace_common_fnc_globalEvent
ALIVE AI Distributor switching group O Alpha 1-2 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 2-2 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 2-3 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 3-1 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 3-2 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 3-3 to HC Headless_Client
ALIVE AI Distributor switching group O Bravo 1-2 to HC Headless_Client
Server: Object 21:31 not found (message Type_119)
ALIVE AI Distributor switching group O Alpha 1-3 to HC Headless_Client
ALIVE AI Distributor switching group B Alpha 2-2 to HC Headless_Client
ALIVE AI Distributor switching group B Alpha 2-3 to HC Headless_Client
ALIVE AI Distributor switching group B Alpha 1-3 to HC Headless_Client
ALIVE AI Distributor switching group R Alpha 2-2 to HC Headless_Client
ALIVE AI Distributor switching group R Alpha 2-3 to HC Headless_Client
ALIVE AI Distributor switching group C Alpha 2-3 to HC Headless_Client
Server: Object 21:32 not found (message Type_119)
Admin logged out, player: CG Whitto, playerUID: 76561198136089714, IP: xxxxxxxx.
ALIVE AI Distributor switching group O Alpha 1-2 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 2-2 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 2-3 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 3-1 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 3-2 to HC Headless_Client
Server: Object 21:32 not found (message Type_91)
Server: Object 21:31 not found (message Type_91)
ALIVE AI Distributor switching group O Alpha 3-3 to HC Headless_Client
ALIVE AI Distributor switching group O Bravo 1-2 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 1-3 to HC Headless_Client
ALIVE AI Distributor switching group B Alpha 2-2 to HC Headless_Client
ALIVE AI Distributor switching group B Alpha 2-3 to HC Headless_Client
ALIVE AI Distributor switching group B Alpha 1-3 to HC Headless_Client
ALIVE AI Distributor switching group R Alpha 2-2 to HC Headless_Client
ALIVE AI Distributor switching group R Alpha 2-3 to HC Headless_Client
ALIVE AI Distributor switching group C Alpha 2-3 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 1-2 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 2-2 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 2-3 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 3-1 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 3-2 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 3-3 to HC Headless_Client
ALIVE AI Distributor switching group O Bravo 1-2 to HC Headless_Client
ALIVE AI Distributor switching group O Alpha 1-3 to HC Headless_Client
ALIVE AI Distributor switching group B Alpha 1-3 to HC Headless_Client
ALIVE AI Distributor switching group R Alpha 2-2 to HC Headless_Client
ALIVE AI Distributor switching group R Alpha 2-3 to HC Headless_Client
ALIVE AI Distributor switching group C Alpha 2-3 to HC Headless_Client

Above is a snippet of what the errors we get are. We are obviously running a headless client and all has been working well with it etc.

After having gone to save, we have had nothing but a continued spam of Distributor messages and not found messages. We have left it for a significant period of time (Coming up to an hour now) and don't have much progress. The person that started save's internet cut out shortly after starting the save process, could this have caused an issue with the saving as the tablet is no longer visible?

Hey Tup, Thought as much,
After posting my message I attempted to go and start the save again. Same issue but literally just double the errors this time.

I loaded the alive quick start mission to make sure I had everything else setup A-OK and sure enough it worked. I'm now looking through my modules to see that it's all fine.

In the mean time, here is my RPT and AliveServer logs (Excuse them not being on pastebin, they are too big :/)

http://paste.ubuntu.com/16374270/ - Alive Log
http://paste.ubuntu.com/16374288/ - RPT Log

Yea considered giving that a buzz last night but ran out of time before I had to pop off. The headless client is reasonably critical to us as overtime without headless client the server frame rate drops to below 15 and players get awful rubber banding and the AI lose a fair bit of intelligence. While running headless client however and having run our server over 3-4 days, we had no issue with frame rates and ALiVE Consistently cleaning up bodies vehicles etc and the caching is fantastic.

I will be trying to save again later this evening and hope all goes well.
Cheers for trying to help out.

I have solved the issue. Before I decided to save I disconnected the headless client and left it off the server for 10 or so minutes. I then procedded to save with nobody else ON the server but myself as admin logged in. It saved all well and reloaded everything.