Slot mods after the November 2019 patch

Yes, the probable bone limit for Sim rigs was discussed at Studio HERE last year. However, that discussion was strictly about Sim rigs, not object rigs. The statement by SimGuruTwoLegs above is the first time I've ever heard EA indicate that any such limit existed for objects. Again, if we had known about this, say about four years ago, we would have handled our approach to object slots and teaching people about object slots a lot differently. So differently, in fact, that our community wouldn't now have potentially thousands of objects with hundreds of deco slots out there that will require alteration to comply with the sudden enforcement of this arbitrary-seeming bone limit for objects.
Adding lots of deco slots to an object is not arbitrary. Players want to use every inch of a surface, and they want to personalize the organization of things on that surface. The whole idea is to make surfaces in the game act similar to surfaces in real life. In real life, people are not limited in where they can place things on a table, for example. My guess is that some creators are going to get around this arbitrary limit by slicing objects up so each section of a larger surface item can have the desired number of slots. That is unless we can safely have deco slots that are unassociated with bones. If deco slots don't really require corresponding bones, then the issue with slotted objects is not really that big of an issue.