USB Drive (Dual, Type C and USB) doesn't show any of my files when plugged in to my Ubuntu laptop, yet shows all files on my Android

I've got a 128GB dual USB drive (type C and USB) which has around 34 GBs of data on it initially (was using it for backup). I transferred some files from my android to the drive, all video files in seperate folders, amounting to around 3-4 GBs. When I plugged the drive into my PC (HP Probook 640 G2 running Ubuntu 22.04 LTS), not a single folder or file is visible, and in their place are two empty folders, 'DCIM' and 'LOST.DIR'. The driver's properties show that all the data is on the drive itself, just not visible to me. Can anyone please help me with this? I looked for similar problems but al

Question by Brian Edwards on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.