Yes, I took a pattern (3x3). In TWRP he asked for the pattern after that it was unencrypted, when I restarted I completely switched off the security function pattern now TWRP is quiet.Yeah, it says op5_op5t... I´ll give it a try.
Nope, Did not work on my OP5T. Did you try with your Lockscreen Pin/password ?
Other TWRP versions didn't even ask for the pattern or said it was wrong. I think it's also due to LOS 19 because with LOS18 (and the same TWRP versions) I had no problems.