I was trying to roll back to revision 2 of a question because, in revision 3, code formatting was introduced inappropriately in multiple places and I did not want to start editing from there, and at least one type is still present.
After confirming that I wanted to roll back to version 2, the system prompted a message:
Unable to rollback to the current version. I checked the question in case someone else had had the same problem with this third revision and in the mean time rolled back, but the version displayed in "normal view" was the third revision.
On second and third try I cannot roll back to 2. Am I doing something wrong or is this a bug?
If it makes a difference: revision 2 was an approved edit, revision 3 a direct edit by a 2K+ user.
I can of course undo the (many) inappropriate changes in rev 3, but for now I left the question in peace in case the bug only can be reproduced with the current 3 revisions' data as input.