Repro steps:
1. Drag at least 2 different effects in the hierarchy.
2. Multi-select all the effects
3. Try turning on/off the Reseed on play checkbox
3a. If it's off, try reseeding the system or adding manually a new seed
4. Try assigning a new effect

Result: can't multi-change any of the above
Expected outcome: these should be available to edit via multi-select

Notes:
- video with repro steps attached