"The dimensions of one or more screenshots are wrong." when uploading screenshots to iTunes Connect

Question

I am uploading my screenshots to iTunes Connect, and like lots of questions preceding me, I get a "The dimensions of one or more screenshots are wrong." error. The only problem is, I've scoured every resource I could.

Here is what I have:

• 3.5, 4, and 5.5 inch screenshots uploaded fine. I am only getting this error with iPhone 6/4.7 inch screenshots
• I have 4 screenshots set up like the following in JPEG form with 72 DPI:

Solutions I have tried:

• Renaming the file to "1", "2", ...
• Exporting to both .png and .jpeg formats
• Uploading an archive to iTunes Connect(testing not enabled)
• Waiting between tries
• Tried it on two different iMac computers
• Attempted both on OS X 10.10 and 10.11
• Cleared website data and restarted computer

I am really dumbfounded.

Answer 1

I notice your dimensions are 750 x 1344. The iPhone 6 is 750 x 1334.

From: https://developer.apple.com/library/ios/documentation/LanguagesUtilities/Conceptual/iTunesConnect_Guide/Appendices/Properties.html#//apple_ref/doc/uid/TP40011225-CH26-SW2