TL;DR The author has modified the PGGAN architecture in their project, so your model pretrained on the original PGGAN codebase cannot be used here. You can delete it now.
Observation
Since the network architecture is altered, so it is expected to generate random pixels like this:
You may wonder why the preview thumbnails are working as expected. It is because the preview thumbnails are generated with the graphs stored in your own checkpoint, while the canvas above is generated with an altered model network architecture that breaks your model.
TL;DR The author has modified the PGGAN architecture in their project, so your model pretrained on the original PGGAN codebase cannot be used here. You can delete it now.
Related Issue: https://github.com/afruehstueck/tileGAN/issues/10
Observation Since the network architecture is altered, so it is expected to generate random pixels like this:
You may wonder why the preview thumbnails are working as expected. It is because the preview thumbnails are generated with the graphs stored in your own checkpoint, while the canvas above is generated with an altered model network architecture that breaks your model.
Solution