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This is something completely new - never had this before. Yesterday I have rendered a PNG image sequence with TVPaint, then composed it with Premiere and when I tried to render it (with Premiere), it just crashed over and over at the same spot. I tried it in After Effects - same thing, same spot (no FX on these frames). Premiere showed an "unknown error" but After FX showed a more detailed error - "too many IDATS found", which, as I figured, means that something is wrong with the PNG. It took me some time, but I managed to locate the corrupt files - there were several of them - I managed to isolate them, and tried to overwrite them again just those frames with TVPain - again same result. Then I have just excluded them from render, and voila - all the rest have rendered just fine. I've spent a day figuring this out though
Did anybody ever encountered this?
and yes - as stated in my signature - Macbook Pro 2011, OS Yosemite, TVP 11 STD
thanks

Never happened to me.

never heard of this before either. Could you send us the corrupted png ?

Hi
Here is one of the images (attached). There were two or three of them, but I'm not sure which now. I had to make some equilibristic manipulations with the files in order to create a proper sequence, which I managed to render only in QuickTime...
regards
(just to make clear - these are stop motion photo images shot on a Canon EOS400 camera, then imported into TVPaint and exported as PNG)