Long time lurker, registered just to post about this unofficial ChildToNPC update. For me, the game is not recovering when attempting to leave the farmhouse on a rainy day.
At first it crashed as soon as I tried to leave the farm, but I then realized I had one other mod installed. So I removed that mod, leaving Content Patcher and the handful that come with SMAPI as the only other mods installed. Launching the game with this configuration resulted in leaving the farmhouse with no issue but ~6 seconds later it crashed without recovering yet again. I'm on version 1.5.6.
I'm more than happy to offer help figuring out why if I can (my save will be sitting without progress for at least a few days) by testing various things or uploading logs if I can.