Thank you Viabroce!
I did the backup, then noticed that I had 3 versions of RM on my system - .33 / .4.4 / .5.1 or thereabouts.
I deleted all 3, reinstalled the latest, and boom...it's working perfectly.
It turned out to be such an easy fix, it reminded me of this...(if you've seen the IT Crowd)
External Content
youtu.be
Content embedded from external sources will not be displayed without your consent.
Through the activation of external content, you agree that personal data may be transferred to third party platforms. We have provided more information on this in our privacy policy.