Your image size is correct. The troubling thing is you say some show correctly and others don't even when you have imported the logo.
To find out which software the infotainment system is running
● Turn on the infotainment unit
● Press the Infotainment menu button and
then select the System context.
● In the System settings menu, press the
System information function button.
It shows the hardware, software (firmware) plus the navigation database it's running (all mib2 stuff, not mib3).
Seat manuals in PDF form are here, select the car and year. See under the download tab (all Seats):
Discover your edition in the back cover of your book. The manual contains information, recommendations, tips and warnings about car use and the equipment
www.seat.com
Plus the Cupra Manuals:
Download manuals of CUPRA models past and present and view useful videos on the technology included.
www.cupraofficial.co.uk
You need a conversation with someone who has exactly the same hardware, firmware and software to resolve if there are inconsistencies.
Trust that helps.