Example log entry:

2021-04-22 14:24:27	Crash in CSystem::RemoveVolumetricShadow
2021-04-22 14:24:27	Crash in CSystem::RemoveObject
2021-04-22 14:24:27	Crash in CSpaceObject::Destroy
2021-04-22 14:24:27	Exception in objDestroy; arg = (368916184)
george moromisato 15 Jun 2021:

Fixed in 1.9 Beta 4. Thanks!