Hey! I've been getting this error in my lua log a lot:
[2442.382] UnitFlagManager: IconHookup error - icon index: 6 icon size: 16 atlas: KRIS_SWORDSMAN_PROMOTION_ATLAS image control: Promotion7
Image control's span includes Promotion1 - Promotion8. The error is repeated many times in a row. Don't know if that's a huge problem, buy my last game started crashing relentlessly around modern/atomic era with minidumps at 0kb and this error as the last thing to appear in the lua log. Leaving this here in case somebody's got the capability and will to take a look.