This is the second post I have seen on this in the last week. I can only duplicate it with a multi-select combo box in View mode where the items selected exceed the width available to display them. If this is not the case, I think it is a bug with a version release.
Please click Accept as solution if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider giving it Thumbs Up.