Dude, may be start by actually reading what's the problem. It has nothing to do with FW, and by the way, I'm using FW 184.108.40.206 Mi Global and it's working fine, so no, the "correct" FW is not 220.127.116.11, that's just a recommendation and a minimum starting point. You should have no problems flashing newer except very rare cases.
It is not a bug, Android simply does not allow to do "important" stuff such as installing apps when there's a filter on. Same happens with third app screen filters, you won't be able to perform some "important" tasks if you have them on.Hey!
Nice work on that ROM and thanks for the regular updates!
I've tried a clean install with V18.104.22.168.RJKEUXM crDroid 7.11 and updated to crDroid 7.12. After activating "smart pixel" (25%) in crDroid-Settings I was not able to install updates via google playstore. It says that another app is blockng playstore and I should check the rights for overlaying apps.
Is that a bug or known as a feature?