Checked the project - works really well and smooth. Tried with different maxFPS settings and it seams to behave stable all the time.
During last test I’ve changed amount of sub-steps to 16 and it started to crash somewhere in Tick(). Keeps crashing even if I set sub-stepping back to 6 as default. Works fine again after disabling sub-stepping. Kind of weird, before I’ve touched those setting it didn’t crash even ones.