Submarine under construction in a killed factory doesn't sink

[speed2CZ]

It does not always happen, idk what exactly triggers this.

WARNING: Error running lua script: Failed to attach entity ues0203 to /projectiles/sinker/sinker_proj.bp on bone 1
         stack traceback:
         	[C]: in function `AttachBoneTo'
         	...ments\github\fa\projectiles\sinker\sinker_script.lua(46): in function `StartSinking'
         	...ments\github\fa\projectiles\sinker\sinker_script.lua(28): in function <...ments\github\fa\projectiles\sinker\sinker_script.lua:26>