First thank you for all your effort akhilnarang. This is an awesome ROM. You did a really great job and I'm glad that there is a RR Pie build for OP3 finally. Thanks a lot!
I found a few bugs which are almost mentioned so far. I have the proble...
How to disable the hardware keys?
Look better next time in the options
Which ROM's screenshot have you attached? As far as AOSiP is concerned, there is no such issue.
What theme are you using?
It looks like there's something funky going on with SIM Lock code on LOS/Based ROMs. Eric_Lev has been having trouble with it too.
You should file a bug report on the LOS issue tracker: