Hello! It's good to hear that everything is going well (for the most part!) :)
I'll see if I can recreate those bugs once I get some things wrapped up for this next release. The frame number issue is probably an easy fix. I am guessing it's a precision thing since I am not casting to an integer and eventually it gets off by a bit as it adds and subtracts 1. Do you recall if it was a value very close to an integer, for example: 2.000001, or was it actually similar to the example you gave of 2.564356?