Monster Info Disabled

Description of the bug: Monster info in-game is immediately disabled after you tinker with its options at the System Options. Once you do that, the monsters do not show its name and health bar even if the options are set to show both the name and bar.
What is supposed to happen?: Monster name or bar or both should appear accordingly to the settings.
Where did you find and/or notice this bug?: I noticed it while adjusting my Systems Options.
A step-by-step guide to re-producing this bug (optional): Go to System Settings. Go to the Monster Info section and choose any random option. Then set it back to your preferred setting and notice how the monsters don't show either their health bar or name.
Extra information (optional): none