version:
numina 1.0.38
forge 14.23.5.2847

i already disabled all the configs related to FOV fix
and settings > videos > fov change set to true
(also all the config related with fov disabled in random tweaks )

but i ended up getting this:

when i am sprinting, fov goes back to normal (same as 1.12 vanilla minecraft when player is not sprinting)
when i am walking/standing still, fov seems a bit larger which looks like sprinting

I dont know what is wrong with my game, pls check this out if possible.
Thx in advance.

Also every time i start the game, config files of numina return to default

I had a similar problem with the fov going smaller.

Similar issue, but mine is just staying at sprint POV constantly, whether I'm standing, moving, or sprinting. I've disabled it in the mod options (for some reason there's no config file?) but it doesn't matter whether it's off or on.

I too have the same problem. It inverts FOV system completely. If you give yourself a very high speed boost through commands or mods, you can clearly see how it "zooms in". I ques having slowness would "zoom out", but I haven't yet tested that.

Minecraft version for me is 1.16.4 and Forge version is 35.1.37