After latest update Photoshop 21.1.0 hangs while trying to use the Shawdows/Highlights tool. Spinning beachball appears and you have to Force Quit the app. Happens everytime.
(German Version of) Photoshop 21.0 to 21.1 crashes whenever I adjust highlights/shadows and the histogram-window is open. OS is MacOS X Catalina, Computers are a new iMac and a Macbook Pro (both late 2018).
I have Shadows/Highlights set as an Action and occasionally use it while editing live football matches. I have noticed that it is crashing Photoshop and the only way to stop it is with a Force Close.
My Ps version is 21.1.0 and I'm using a 2015 MBP with 10.14.6
I guess you are right, he was polite and probably enthusiastic and for that I am truly grateful. The problem, as you say, lies in the training of on-line support staff and maybe Adobe, together with many other software companies need to beef this up.