Lightbulb reinstall stock recovery

SM-T705, cf-autoroot, TWRP

After restoring (with Flashify or ADB/dd Methode) stock recovery (still rooted, but of course loosing TWRP) screen mirroring works for me. I even restored TWRP and it still works.
In Odin Mode (Power & Vol- & Home) I see now:
Samsung Official
Custom
Knox 1

But when you boot into TWRP recovery you will loose it again, as status goes to
Custom
Custom
Knox 1