I'm not even sure I recall my Github login credentials, as I'm not a developer and I'm not even clear on how I would go about using it.
I'll head over there to ask now, but I'll also ask here if this is a known issue or if there's a solution in the works, or at least a single-player update to being the mod to Factorio v0.16.x. I'd place a note on the Factorio forum thread if this mod had one (a search over there only yielded a fair number of references to the desynching issue, such as https://forums.factorio.com/search.php?keywords=axial+tilt.)