after working with a lot of layers, masks and clipping layers my file got corrupted. That happened in the past but I always found a way to fix it buy copying uncorrupted layers to a new file. Most of the time it was just one layer corrupted. But this time is big, it looks like the whole file is corrupted. Find attached how the file looks after corrupting.
It's a big piece of work where I've already spent a good amount of time. Any tip to recover the file?
Go to the last backup you have saved.
It's in your Time Machine. Just go back before the corruption happened and retreive it.