Cant add vynils to Jeep Rubicon tire cover.

I was wanting to create a custom tire cover for the Jeep Wrangler Rubicon on FM4 and I can’t add any vigils to the tire cover. I’ve tried doing it from the rear bumper and wing sections and it still won’t let me. Any body have the same problem? Have any suggestions on how to overcome this? Thanks in advance!!

yes, apply… on the “wing” - maybe you need to move it around a little or make it bigger?