Are we using deep links the wrong way?

Summary:

After 22A update a number of our deep links have stopped working

Content (required):

We released 22A to our environment in the middle of april, and after that some of our deep links no longer function. They simply open blank pages. We've tried copy/pasting, applying the deep links to tiles etc. but nothing works.

We had a number of deep links testet in a sandbox just before the 22A update and they worked fine (Deep link for termination for instance), but immediately after the update they do not work - it's just a completely blank page.

This happens for at least TERMINATE,NONE/EDIT, CHANGE ASSIGNMENT, NONE/EDIT, EMPLOYMENT INFORMATION, NONE/EDIT, ADD ASSIGNMENT, NONE/EDIT and POSITION DETAILS, NONE/EDIT.