Hi there,

This might be user error but to add 85 days in order to experience Wintertime for the "Fabric Seasons" mod, I'll use the
/timechanger time add 85d
command, but when I add the time it changes cycle to static (freezing time) Then to try and keep the time moving again to experience snowfalling I'll use:
/timechanger cycle movingtime
command, but then it reverts the days back to Spring again.

Is there anything I'm missing?

You're not missing anything as the command works by first changing the cycle to "Static" before actually changing the time. I didn't account for this for "Moving Time" when they should have been.

Unfortunately, I don't have as much incentive to keep working on the mod but if I ever pick up the interest, hopefully I can get this issue fixed along with a much-needed update that I've been working on for a while but couldn't due to this aforementioned problem.