Some world events are suppressed during the new-game intro by design (see #332), but some events are still raised which causes errors in some mods. Review and fix as needed.

Thanks to @AdvizeGH for testing the event order in SMAPI 2.0:

I suggest suppressing all save and world events until the game actually starts:

For further clarity:

The ideal solution would result in:

A small mod that prints event execution order to the log (can be used with all SMAPI versions):
EventOrderTestMod 1.0.zip

Done in develop for the upcoming SMAPI 2.1.