It's an issue with the recovery. You're most likely on twrp 3.5.0, right? You can eithe use 3.4.0 or the one I use, SHRP 2.2 (2.3.2 doesn't boot into recovery; also shrp is no longer maintained for our device so if anything breaks in the future, use twrp 3.4.0).
The other way to get around this...