Unsupported Device/Browser and Other Issues

I don't know if anyone else has been having any of these issues but unfortunately this has been a repeated issue for me. Whenever I try to edit the uniforms or any of the other categories that's not Brand, it always pops up the save and discard window when I haven't even touched it once. Normally I delete the in-progress team (because I can't get too far in editing it in Teambuilder) and start over from the create a team page. Everything goes smoothly in terms of editing everything I want until I get to the uniforms. When I get to uniforms, I still can't see the preview for any uniform options and whenever I save and reload it, the same thing happens again. I try reloading it once more, because sometimes reloading helps it appear, and it redirects me to the Unsupported Browser/Device page. I am using the Teambuilder website on a laptop and have tried multiple browsers and it's all been the same result.