Duplicate OpenGL Renderer Miscellaneous settings not sticking

[Retroben]

If I set bit depth to 32 from 8 and if I set anisotropic to 16 from 1,it will revert after closing and opening srb2 again.
This is happening on 2.2.9 via at least on the uncapped 1.1.1 addon but also more importantly has happened on previous vanilla versions as well,and has always irked me.
Anisotropy actually has a visual difference when changing between 1 to 16 so I know that option works in-game but it refuses to save it from it changing back to 1 after opening it again and looking at the options.

Though for bit depth,it appears to have no visible effect when changing it,maybe that needs addons that have 32bits of bit depth on custom graphics?

 

[SeventhSentinel]

Bit depth not saving is a known bug. Try adding a line to your autoexec.cfg that contains the appropriate console command to enable it.

 

[sphere]

Duplicate of https://mb.srb2.org/threads/opengl-filtering-and-antialiasing-issues.27005/, and this is also reported on GitLab.