I’m happy that the issue is resolved. A fix is coming of course, so that this workaround will only be needed for a short time.
For anyone else with the issue, please see this topic:
Fix to the issue of opening projects / creating new projects / missing Studio settings
V_Roboto_V
prashant1603765
ashokkarale
mively
Anil_G
yedukondaluaregala
Latifa
sharazkm32
postwick
jast1631