Game tries to record demos constantly
The engine seems to try to constantly record demos on old mods. My mod's game dlls are based on the older version of the SDK code, but after the engine update, it gives a ton of console spam. This was not an issue before the update.
After starting a proper recording of the demo with "record hu":
I've also seen this in a few mods that did actually manage to launch. Causes the console to be basically unusable.
Stuff actually changed so you need to update cdll_client_int.cpp with the latest changes on old source mods. Right now if you're testing while in windowed mode, IsWindowedMode is actually being called which and returning true which is why it's constantly trying to record a demo.