With this bug I'm unable to switch guard and block until I get hit, on my conqueror character.
Looks like it's trigger by switching guard during countering guardbreaks animation, but I am not completely sure.
First video is from september 2017, and other 3 are from after february 2018.
1. https://www.youtube.com/watch?v=SFn15IlXXAk
2. https://youtu.be/HWIBcYqeY24
3. https://youtu.be/s8Y16PwzNmw
4. https://youtu.be/1nYXymKm-RI