Media files knocked out of sync in bridge and premiere

When transferring media files from the camera to computer, playback is absolutely fine (VLC, quicktime, etc), but when the same clips are played back in bridge or premiere, the audio and video are out of sync. Adjusting in the timeline results in the loss of both video and audio. It’s ONLY in Premiere and Bridge that clips play out of sync. All the normal fixes are irrelevant, as none of the issues exist; the clip and sequence settings are identical, and nothing is external, the files are one file with video and audio on them - in fact, plenty of files imported at the same time from the same camera into the same sequence are perfectly synced, but some aren’t, for absolutely no reason. This must be a bug, as support wanted to remote in on my personal device to see what the issue is, and nothing else is working. And again, the problem clips ALL PLAY FINE IN OTHER MEDIA PLAYERS. This issue MUST be with Adobe.