It's a cautionary tale NC! Sounds like you did everything perfectly, and even many perfectly transplanted photo plants will stall after upcan. But that just means a slightly longer veg rather than a diminished harvest.
As long as you know how to water a small plant in a big pot, I can't see any upside to transplanting autoflowers.
As long as you know how to water a small plant in a big pot, I can't see any upside to transplanting autoflowers.