Hi .. did you find the answer for this ? As I have exactly the same issue.

If it helps I've got a little further with this, on commit you get the following page and then thrown out

Checked both the comm and lib asp's and they appear to be fine.

Hi,
Unfortunately not as yet.
I have a similar URL popup on screen briefly before being logged out.
This URL seems malformed at the end "charset=utf-8>" but I can't see where it is being constructed.

Something similar happens on the landing page for the custom entity (...User.asp) .
If you change the "My CRM for:" user, when the page tries to refresh the list for the newly selected user , it shows "charset-utf8>" and then I I get a 500 error.

Hi,
Unfortunately not as yet.
I have a similar URL popup on screen briefly before being logged out.
This URL seems malformed at the end "charset=utf-8>" but I can't see where it is being constructed.

Something similar happens on the landing page for the custom entity (...User.asp) .
If you change the "My CRM for:" user, when the page tries to refresh the list for the newly selected user , it shows "charset-utf8>" and then I I get a 500 error.

This also has been reported to Dublin as a bug and the fix is expected in the next release, that 2022R2