iPad glitch - Images being replaced with other images in Catalogue

I have my iPad lightroom synced to my MacBook, created catalogues for each of my editing jobs. All synced fine. I go to edit the catalogue and find that some images have been replaced (not added) by another image in a different catalogue. Sometimes upside down. I'm finding it super weird. I don't really want to delete the images that shouldn't be there but not sure how to get the ones back that were replaced!! 
This has happened on a few other catalogues now. 

I've signed out of my Adobe account, reinstalled the app and still having this issue 😞 Has anyone else experienced this?