this keeps happening to me too i wait for a bit it eventually loads and i see my png but then when i open a program while using the pngtuber plus the program immediately freezes and then comes back after a short while i just wish i knew what the issue was as i have deleted and reinstalled the program still does the same so im not sure its sad to see the program in this state as it is really good when it works i just wish the creator would help resolve some of the issues