In working down an issue I was having I narrowed down this bug. If a blueprint uses a parameter with a rarity (other than common) it will thus be unmarked, and changing that parameter no longer offers the rarity selection, forcing that rarity permanently. Only way to fix this is to place the bluepri...

Select new contents for blueprint with parameterized formula referencing an 'ingredient of' parameter will not maintain static value. The issue I found is that if the stack size (or likely any variable) in a formula points to a parameter, say [P1] that is also marked as an ingredient of another para...