[Q] TWRP is gone

[Rick O]

I tried to boot into recovery to make a backup but TWRP has disappeared - no recovery whatsoever. Phone boots to system only. How can this have happened? I've been using Omni for the past month or so with no problems and updating every Sunday.
To recap, I have not done any modifications since the last opdate.Tried to boot into recovery and it is gone. Since only using Omini ROM I thought it was a ROM issue but no one in the Omni thread as been able to help so posting it here.
I can probably flash it again but am puzzled why is should just vanish.

 

[Immortalis]

The recovery might have got updated and the last update has overwritten TWRP, so it may be the cause of disappearance, but I'm not sure. You should've got standard recovery bundled with ROM.
And yes, just flash TWRP and it should work again. No need to flash Magisk or custom kernel, since you're on custom ROM.

 

[redpoint73]

Recovery partitions may have been corrupted. Try fastboot erase cache, and then fastboot flash recovery (TWRP). See if it boots into TWRP then.

 

[Rick O]

TRWP installed again

Many thanks to all.
Recovery back! Still don't know why it disappeared.