YES!! I have this issue! My accuracy dropped from 95% to merely 25%… Even if i load the model learned previously to new version of FastAI and they perform badly too.
I read through my code, and it’s so strange that the same code, with a different version performs differently. I check the release note and file changed, but there’s not much change? I use Colab and my own GTX1080Ti machine and both report the degradation.