Try aa_msaa=none

what version of config do you have? and did you edit the VPK?

in user/modules.cfg:
alias aa_msaa

I have a Valve Index, but good idea. I'll try it out soon.

Could you try a low preset with no selected modules, and see if it still happens?

modules.cfg:
decals_art=on

https://docs.mastercomfig.com/en/latest/customization/modules/#map-decals

What is the context of this happening?

modules.log is used for the in-game selection, but does not affect modules.cfg. Can you share your modules.cfg?

Also, the reason why it says that error is because in a recent update, TF2 broke how in-game selection was being done. I fixed this in a mastercomfig 8 beta update.

What version of the config are you using? Also, you can use the normal way to select modules, in modules.cfg. Do not use the =textures=high type commands in cfg files. Use textures=high in modules.cfg.

https://docs.mastercomfig.com/en/latest/customization/modules/

mastercomfig 8.0.0-b11
https://cdn.discordapp.com/attachments/389091098922057728/633377038002028555/mastercomfig.zip

* Reverted experimental networking changes
* Disabled custom occlusion settings (experimental change, please benchmark vs. b10)
* Updated the localization files

CS:GO has much more restricted options than TF2, yet it's a huge esport. The only thing that's really killing the competitive scene is the lack of a Valve backed tournament. Money shifts a lot of things around and makes people able to ignore annoyances.

Sure, we could also have some optimizations to the game like CS:GO has had, but really just a Valve tournament would be enough.

I've considered it, but I don't think I'm ready to contact them yet. I'm still not sure about a lot of the options.

mastercomfig 8.0.0-b10:

https://cdn.discordapp.com/attachments/389091098922057728/630059882250240010/mastercomfig.zip

* Removed lod=very_low
* Rescaled lod=low and lod=medium to account for this
* More experimental networking changes
* Rescaled networking rate to account for buffers
* Finely optimized shadows
* Optimized temp ent collision
* Increased the size decals will disappear at
* Optimized ragdolls=high
* Fixed in-game modules selection system to work after update
* Cleaned up some useless settings in the config
* Updated the localization files

Changes from 8.0.0-b9:

* Ragdoll optimizations
* Minor adjustments to increase performance in various modules
* Experiment with optimizing animation load

You all need to read the docs! :D

For your class config issue, custom configs: https://docs.mastercomfig.com/en/latest/customization/custom_configs/
For your killfeed issue, modules: https://docs.mastercomfig.com/en/latest/customization/modules/

But I'd recommend using low, not very low if you want to enable HUD stuff. Because then you aren't the target demographic for very low, which is for people who are incredibly desperate to turn everything off.

https://cdn.discordapp.com/attachments/389091098922057728/626489264447815711/mastercomfig.zip

mastercomfig 8.0.0-b8:

* Rescaled network values to Valve developer findings/statistics
* Experimentally disable threaded frame order
* Mastercomfig no longer sets various advanced options
* Updated the localization files

Support me on Ko-fi or get a config commission! https://ko-fi.com/mastercoms

3 updates in one day? POG CHAMP

This was a typo in the config settings and is fixed in the updated 6 versions or the 8 beta, sorry. I've deployed a hotfix to mastercomfig 7 to override these settings. You should get it if you apply the config again.

Addons override modules and presets.