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Units with insignia + unsupported uniform cause graphical issues with JIP
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If a unit with an insignia set by BIS_fnc_setUnitInsignia/Arsenal changes uniforms mid-mission to a uniform without an "insignia" hiddenSelection, players who join the mission after the uniform switch will see the insignia's texture forcibly applied onto one of the unit's model's hiddenSelections.

This cannot be fixed by calling BIS_fnc_setUnitInsignia with an empty insignia, as the command will fail due to the uniform not having an "insignia" hiddenSelection.


Operating System
Windows 10 x64
Operating System Version
Steps To Reproduce
  1. Start a dedicated multiplayer server.
  2. On class "B_Soldier_F" unit, execute BIS_fnc_setUnitInsignia with any insignia.
  3. Through Curator or other means, change the unit's uniform to one where executing BIS_fnc_setUnitInsignia returns false
  4. Go back to mission lobby.
  5. Rejoin.
  6. Watch as part or all of the unit's uniform model has the insignia's texture applied to it.
Additional Information

Seems to be fixed temporarily by reequipping or changing uniforms, but players who JIP after this'll see the glitched texture again.
Bug has been around for at least a year, if that helps.
Happens with both player and AI units.
All testing done with v7 performance binaries on version 2.00 of Arma 3, but can be reproduced with stable branch.

Screenshot when uniform has "insignia" selection:

When uniform is changed to one without, but without backing to lobby:

After backing to lobby and rejoining:

After reequipping uniform, looks exactly like Screenshot#2

Event Timeline

Update: this is actually caused by switching to any uniform where index of insignia in hiddenSelections array is different from original uniform.