Stop Lightroom Mobile from auto syncing video with auto add DISABLED

Hi there,

I have been trying to wrap my head around what's happening with my Mobile downloads.lrdata folder (you know the one that's taking up SO MUCH disk space), and even though I have set it to now sync to a folder on an external drive it's still taking up a ton of space. I know it's all old stuff that was already synced before I told LR to sync to the external drive. So I guess I can move those images (within LR) to the external drive - which I still need to do.

For now, my issue is that I noticed that out of the 6800 files that are currently in my LR Mobile app, there are 2200 video files even though I have NEVER told LR mobile to import any video files. Just to be clear: the auto add feature is disabled (for both videos and images). And what's even crazier is that there are a lot of very recent videos in it - like videos I shot two weeks ago. I did not import them into the app, and auto add is disabled; so how do these videos get in my LR Mobile app? And it's seems very random because a lot of other videos that I shot in the last two weeks are not in LR Mobile.

I know I could just delete them (right?) but I want to know which process is making this happen so I can stop it from happening. Does anyone have any clue about what might be going on?

Thank you so much!