In the RPG System by MFerrari, you an put points into "walking" making you walk faster increasing your base move sped by %, after using any zipline and exciting the power lines, all the move speed bonus you got from the RPG mod is gone and non recoverable.
If you put more points into walking again after using the zipline, it starts giving you % move speed increase starting from the base again and not where you originally had it, using a zipline resets it again wasting your RPG points once more.

Sorry for the late reply, should be fixed with v 1.2.3 and up

Hi, just fyi its still happening using current v1.2.8 after stepping and using (with F key) a player launcher. Then, the speed bonus from RPG mod is gone. Then one needs to use /rpg-reset-points to be able to reallocate the points to get the speed bonus again.

That's weird, it works when I adjust player stats and use the player launcher/zipline. Maybe the RPG mod changes stats differently. Do you have a save file I can take a look at?