SetParent/setting transform parents leads to unpredictable and random scaling of decals

• I want to parent blood decals in my game to objects their blood particles come in contact with in order to prevent floating blood decals on moving elements of the level.

• However, the ac$$anonymous$$eved effect works, most of the time. Seemingly whenever the engine feels like it, it randomizes scales for decals cast on to objects from particles with OnParticleColliison, as shown in the following screenshot.

• I have tried to force reset scales by, upon creation, deparenting the decal, resetting its scale to a hard-coded value (being 3.5 for all components of its scale), and reparenting it. T$$anonymous$$s results in especially poor performance, causing roughly 30 MS of CPU time to be spent on the script responsible for casting blood decals with particles.

How do I fix t$$anonymous$$s? Do I suck it up and just only cast decals onto static/non-dynamic objects, or is there some other feature $$anonymous$$dden wit$$anonymous$$n Unity's codebase somewhere that can help me?