@Matt it appears a solution is near thanks to @ norfolkislandam post #29 of Crashing after installing new version 21.1.17.
For the time being, when desktop edition on your Mac is running, can you go to Safari or Firefox and type:
This should allow you to work on Manager with printing and PDF working until the issue is fixed within the proper Manager window. Thanks to @Tut and @lubos for a temporary fix and eminent final fix in a few days.