Rev limiter issue with iRacing

Is it just me or does Simucube have issues with rev limits in iRacing.

The LMP2 currently has the wrong rev limit (8500 instead of 8000 in all but the last gear). And whenever I try to change the rev limit either through global setting or car-specific settings, it doesn’t take effect. When I change settings, they don’t apply. Settings aren’t saved across sessions. If there is some rhyme or reason behind this, I don’t understand it, making the experience very bad.