Hi there.
I have D6633 with Omni 8.1.0-20181027-z3-nailyk, kernel 3.4.0-OmniROM-g597d7368149
After I flashed OmniROM I've installed my microSD card. The ROM asked how would I use the SD card, I've choosen option as removable storage. Because I didn't want to format my SD to ext4 type FS, and "bind" by this action this SD to my phone (it was suggested as 2nd variant - internal storage).
Now there is several problems with apps.
1 is - I can't save photos from camera to SD. If I choose storage as SD I get message "No access to SD-card". Camera has full access to Memory. Also access was enabeled in the Dev's menu (Allow to save on external storage, or something like that).
2 is - I can't also see SD memory in default audio player (Phonograph). I press ROOT folder and see nothing. I press storage folder and there are "emulated" and "self" folders, but both have nothing inside.
Another different problem are GAPPs.
If I try to install any package of Open GAPPs for ARM 8.1.0 via TWRP, I get error about "wrong architecture".
If I install GPlay manually, it installs and do not launch. If I additionally install GPlay Services, then GPlay launches, but stucks on white loading screen. I've tryed a lot of mods (LP mods, customs, original GP) for my DPI, for NoDPI, but the result is the same.
Also I can't add Google Account. If I'm trying to add account (pressing option in menu) nothing happens.
So how can I solve all above mentioned problems without roll-back to original ROMs?