Display sizes being recognised incorrectly I'm running my MBP (Retina, 13-inch, early 2015) with two external monitors, one connected with a VGA-MiniDisplayPort and the other connected DVI-HDMI. They are arranged from left to right as in the picture below.



The problem lies with the fact that my MacBook is recognising size of each monitor incorrectly. Below is a screenshot of the sizes the software thinks each screen is



Is anybody able to explain why this is happening? I've tried unplugging and rebooting, rebooting whilst still plugged in, rebooting while only one is plugged in etc, etc...

EDIT: I forgot to mention, that everything was working as normal until this morning, I'm not quite sure why it suddenly changed. Thanks for your answers so far 

Solution: Swapped the cable out with a DVI-DisplayPort from a hotdesk. Not really a fix but it works for me...
The resolution is what determines the ‘size’ in the arrangement tab. In the photo, the middle monitor's resolution is so much less than the other displays. To adjust the resolution, go to the Display tab, then use the window on that specific display to choose a higher resolution.