XAVC-S not loading on Linux

Hello,
I'm a new comer to Davinci Resolve, and it seems like I can't get Resolve to recognize my XAVC-S videos, it only loads the audio of them.
I'm on Ubuntu Linux with a GTX 1080 Ti, and a Threadripper 1950x, and 32GB of G.Skill RAMs.
I've read, it might be my AMD CPU, but not sure how to resolve it hoping I won't need to re-encode and degrade the quality, as the videos load just fine on NukeX and LightWorks Pro, even on Kdenlive, Cinelerra, and Blender.
Am I missing something here?
I'm a new comer to Davinci Resolve, and it seems like I can't get Resolve to recognize my XAVC-S videos, it only loads the audio of them.
I'm on Ubuntu Linux with a GTX 1080 Ti, and a Threadripper 1950x, and 32GB of G.Skill RAMs.
I've read, it might be my AMD CPU, but not sure how to resolve it hoping I won't need to re-encode and degrade the quality, as the videos load just fine on NukeX and LightWorks Pro, even on Kdenlive, Cinelerra, and Blender.
Am I missing something here?