@Max3 there are currently some limitations that Named Selections won’t be able to overcome in the near future. As one example, Grips changing are one of those things, and there are other objects with similar complexity. Currently Grips don’t have any sort of object id at their core. When the grip collection changes we don’t really have a way of finding an exact grip again. So if you have 10 grips and you delete grip #5 we don’t really know that 5 is gone we know that 10 is gone as the collection shrinks from 10 to 9. This is a current limitation but something we hope to make better over time. I was on the fence about whether to pull the feature from v7 until we could figure out some of these things better but most of us agreed that it was already so helpful that even with its few shortcomings it’s worth having in place. So yes, you may see certain object types not always behaving ideally in version 7 but we hope to grow it’s ability going forward. The reason your selection vanishes is because i’ve lost track all of the objects that were in the selection, they’ve changed enough that they no longer exist and get removed.