This is likely due to a collision issue with that plugin. I am changing the way the ground collision works in 1.1 to help people work around these problems. I honestly wouldn’t be able to tell you what is causing it without seeing how the level you are using is set up. Did you migrate Weapon Master or is this a direct install?
No, I had to push back release again due to a major bug. Its been fixed and I am going through the pre-release clean up this week. I am not going to give a firm date (since I am terrible at hitting them) but release it should be within the next week or so. If I hit no snags this weekend it might be up on itch on sunday or monday.