For multi-select fields, it helps a lot that at least 2-3 lines are available to be seen (like normal multi select lists), otherwise it's difficult to see what has been selected and what not (see Attachment). Currently only a narrow (one line) view is available, which makes selection very difficult/inconvenient.
These are not CF++ multi select fields. I think they are normal multi select fields. Please check attached screenshot.
I'm afraid they are (see screenshot). What could lead to this problem?
I'm glad you can't reproduce it