Model collapse

[lucabergamini]

I've trained the complete model (A-->B and B->A) on the CELEBA training set, split between males and females (50k images per group) with images resized to 76x76 and random 64x64 crop. After approximatively 300 epochs the model fully collapsed:

While not having the reported quality (in terms of definition on both domains) even before.
Anyone else experiencing similar issues?