[2.9.7.59263 MT] "Mission load fail" when attempting WSO track playback

[Stickler]

I have had the issue of getting the loading bar stuck at "Mission Load Fail" when attempting to replay a multiplayer track from a session with me as WSO in the back seat of a human pilot which was generated from a mission run on a dedicated server for a while.

Until now I thought this was related to the complexity and length of the mission somehow corrupting the track, but now I think we are looking at a general problem.

Reference the attached .miz which only contains an F-4 and a hostile BTR at a separate airfield.

When running the mission on a self-created server and entering the aircraft as a pilot, clicking a few switches and then exiting, the resulting track "without WSO" will playback just fine.

When running the mission on a self-created server and entering the aircraft as a pilot, switching to the WSO seat, clicking a few switches, returning to the pilot's seat, clicking a few switches and then exiting, the resulting track "switching" will also playback just fine.

If, however, attempting playback of a mission hosted on a self-created server with myself as a human WSO having been present in the same jet on a different computer, both the track recorded by the pilot/server ("Pilot and server track with WSO") and the track recorded by the WSO ("WSO track") will cause the loading bar to hang at "Mission Load Fail". DCS subsequently has to be exited via "CTRL-ALT-DEL".

Previous missions I flew on a dedicated server with another human player in the front seat had the issue that the track generated by the pilot was loadable, the track generated by me was not, as above.

Any idea what might cause this? Has anyone actually been able to get a working (that is, "loadable") track of themselves in the WSO seat from a mission with another human pilot in the front seat?

tracktest.miz server-20240907-115215 (Pilot and server track without WSO).trk server-20240907-120320 (Server track with aircrew on one PC switching between pilot and WSO seat).trk server-20240907-114141 (Pilot and server track with WSO on separate PC).trk tracktest-20240907-114158 (WSO track on separate PC).trk

Edited September 7, 2024 by Stickler

[Str][ker]

I would like to understand this as well. Until the most recent update (maybe one before it) I was able to replay some multiplayer tracks. Now they consistently fail and get stuck at Mission Load Fail. Something changed in the recent update(s) which broke multiplayer track replay.