Despite unchecking the box for snapshot/modded versions in the installations menu, said versions still appear in the main version select menu

I'm not entirely sure how this exactly happened, so the following is my best guess/estimate of how to recreate it

Steps to reproduce:
1: Open the java launcher and create a snapshot or modded installation
2: Check the snapshot/modded box
3:Launch a version
4: Close minecraft, then uncheck the box
The snapshot/modded versions should(I think) persist in the main version select screen now

I'm unsure if this is the correct version, so please refer to the attached screenshot for detailed info