Outlook for mac opens attachements twice

Erwin35   This has been happening to me for the last few weeks, it's very annoying.  Not only happens on opening attachments, also happens when saving:   two 'save as' dialogue boxes open which is very confusing as it's hard to track what you've saved and where.  If saving multiple attachments it also doesn't default back to where you last saved, which is also extremely irritating.   Can't for the life of me work out how to fix it.    Temp fix of opening a reading pane instead didn't work - it did at first but then the problem came back.   Only thing that DOES fix it is if you click on the 'download all' link, if you want to save.    This work for one attachment, but not very helpful if you want to save multiples to different places, or if you're simply opening for viewing.