SharePoint List editing issues on the list created items

Hi

Our SharePoint lists are having displaying errors as existing items are overlapping. This occurs when I select an item then try and edit it by edit all . This will just open the list entry haphazardly making it difficult to see which column we want to make changes to or make it difficult to read anything at all.  

We also have a column with multiple lines using enhanced rich text , this cannot be completely edited as it opens a blank notes page when I select edit to change existing notes.

I raised a support ticket some weeks ago and its still being worked on.

Can anyone assist with this as it's a show stopper for us.

Thank you