Strange. I've tried all the ways this can be done now, and I can't replicate the problem here.
Just to be sure how it fails for you - what are the exact steps? You've set up a location that has Pre-processing set to resize to 2800 and then you go to the export-screen, pick the gear icon and tap the Action task that resizes and FTPs out?
You say that this also happens if you don't resize - so basically FTP out just doesn't work? Has FTP ever worked?
Also, what device are you using?
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