Exact same issue for me, Robot Army 0.4.8 And Unit Control 0.3.8
I Just drag-selected some units the performed a "move-to" and crashed.
My log:
515.026 Error ServerMultiplayerManager.cpp:91: MultiplayerManager failed: "The mod Robot Army (0.4.8) caused a non-recoverable error.
Please report this error to the mod author.
Error while running event robotarmy::on_tick (ID 0)
LuaUnitGroup API call when LuaUnitGroup was invalid.
stack traceback:
[C]: in function 'index'
__robotarmy/robolib/Squad.lua:628: in function 'validateSquadIntegrity'
robotarmy/robolib/Squad.lua:384: in function 'squadStillExists'
robotarmy/robolib/SquadControl.lua:11: in function 'updateSquad'
robotarmy/robolib/eventhandlers.lua:39: in function 'processSquadUpdatesForTick'
robotarmy/robolib/eventhandlers.lua:362: in function 'tickForces'
robotarmy/robolib/eventhandlers.lua:458: in function <robotarmy/robolib/eventhandlers.lua:455>"
Edit 1 I have a Droid Guard Station placed, maybe related ? i'll try to remove-it to see if it crashes
Edit 2: I played without issues with 100+ units without any buildings like Droid Guard Station, i'll try to re-place it tomorrow to see if it crashes