I think this may be a known issue, as I see some users are also reporting similar problems.
I have also submitted this topic at the discord channel (no answer for now).
I'm using current DCS World Steam version, using a HTC Vive Pro 2 + Valve Index controllers. I have tried to check this issue in multiple modules (Su-25T, Black Shark 3, C101) without any results.
I've reinstalled DCS and SteamVR to check out if there was any corruption issue, without solution.
I tried some solutions provided by ChatGPT (remove fxo and metashaders2 folders, verifying files via Steam properties, etc) and nothing.
ChatGPT log scanner detected that there was no controllers detection.
I upload all the files recommended at the forum to try to solve the issue (I've upgraded my computer just to improve VR in DCS and this is dissapointing..)
I hope you could solve it.
dcs(1).log
DxDiag.txt