9.0.2/Pi3b+: freeze when scanning library for the first time

[the_bertrum]

What breed of NAS do you use? I have a similar freeze on a Pi3A+ with 9.x moode. 8.x was fine, my Pi4B+ is fine. I've bee doing a deal of investigations (need to write up some more on the thread I have about it), but I'm not coming to suspect that it's the SMB share from my Synology NAS that's the cause. If you are on SMB from a Synology too it would be another data point in support of my hypothesis.