Rover Size changed for me on my space program

[thomas5524 10]

ok so far I have been using small rovers I have 3 on mars but some how they have large solar arrays thing is I don't even have the tech for that yet BUG???? im not sure what too make of this.

[dram 14]

Hi, what tech level do you have, and if you could please post a screenshot of the solar panels, then we could see if there is something wrong.