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Error 86 :: 1 when importing large jpg to After Effects
Am getting an error when trying to load a hig-res jpg into After Effects.
Error 86::1

Then I get an error that the file is corrupt or damaged

I can open the jpgs in PS and Photo viewer
Files vary a bit in size but the one I used for testing is 21941×16360 (all are RGB 8-bit)If I save the file as a png from PS it will import. But if I use SAVE AS to create a new jpg, then it will not, UNLESS I reduce the image size to 18500px width. Then it’s happy. (I tried lots of incremental decreases in size until I found one that works.)
New 185000 jpg is 150MB, but the png that works at full res is 371MB.
I can import other jpgs from this scanner, but on closer look I think they are all under 18500px wide.
I have to do a long animated zoom into 100% in a 4K comp, hence the gigantic dimensions of the scans.
I would prefer not to convert all these scans to png files as I have over 30 and it takes roughly 5min to save each giant file. But mostly I’m curious as to why AE doesn’t like a jpg that size. Adobe says it will accept up to 30,000×30,000 images.AE 2019 16.0.1
Windows 10
cleared my caches and have 57.7GB RAM allocated for AE