video files not showing in bridge

[Tina28569729cvmo]

I make a lot of small videos on my pixel 6a. I edit them using either the native app, Rush or the native tiktok and inista apps. for some reason when they've been edited the file name gets LS. inserted before the .mp4 name, so it will go from PXL_00000000_0000000000.mp4 to PXL_00000000_0000000000.LS.mp4. When the LS has been inserted, then it previews in bridge, if it isn't then the default video player VLC icon shows. I really don't understand why this is happening and it's really annoying. So if anybody can explain this I would be really appreciative. 

Thanks