Today I Learned (TIL) that in the Yokohama release, Update Jobs [sys_dm_update] don't work on read-only fields - That is, fields where the Read only option is checked off

The Update Job will fail even if you are running it with the 'admin' role.

Enabling or disabling these options in the Update Job do not seem to have an effect on the ability to update a read-only field:

I couldn't find anything about this in the Release notes so i thought I would share.