Not sure if I'm going mad but after the 1.05 patch Geralt seems unable to dive, the 'swim fast' thing works, but diving doesn't.

Also the new colour-blind option setting doesn't persist between gaming sessions, if you switch it on it reverts to off when next start Witcher 3. Not colour-blind but I prefer that option to normal.

Also also, some settings reverted after the patch (but not all), my game decided it wanted to do Borderless Window mode again when it patched causing freezes requiring hard resets before I found the culprit (I hope that's the culprit anyways, but it's always behaved in Fullscreen mode and after changing it seems to be working ok again).

Apologies if these have already been mentioned.

I simply make the settings file read-only, solved all these random resets config-wise.

The settings thing doesn't sound like a bad idea, it might stop new patches setting new settings, but if that stops my PC jamming up, that's a fine trade-off.

As for the swimming thing, I just restarted the game, loaded and it worked, I could dive again. Not sure what was going on there, definitely couldn't dive before... either I really am going bonkers or it's intermittent.

When they add new config options with a patch, you can always delete the config file and run the patched game, it will create a brand new config file with the new options. Downside is you need to set everything up from scratch again.