I can't for the life of me figure out where some the customized editor toolbar reset after last update? Does this always do this? I had even uploaded a new button but it too is gone?

Adding buttons still works fine here, and nothing has gone without pressing on the restore default configuration. IPS 4.6.5.1. 

Edited August 4, 20213 yr by Afrodude

I have never press it and they are all gone. 

It's fine some wired stuff happen with IPS, and it's not going to be the last time.