Players flag survivalfly when they walk/jump on mud

[FeelTheSummie]

Complete output of the ncp version command (please prefer text here)

Short description of the issue and how to reproduce (is it random / always happens / side conditions ?)

Have you made any (noteworthy) changes to the default configuration of NCP?

Do you run any other special plugins that affect game mechanics next to NC+ (skills, machines, adding/changing blocks, other anti-cheating)?

Provide additional information: for bypasses, vulnerabilities and reproducible issues, we request a debug log. Use GitHub gists or PasteBin or similar for errors and huge logs, or attach a (zip-) file here.