Hello again,
I tested your texture and it look okay on my system. Refer to my screenshot below.

To make sure the newer version get installed properly, please try, uninstall Start11, reboot immediately (important), download latest version available in your account product download page: https://store.stardock.com/myaccount/products. Install it, reboot immediately again. Retest it and report back.
Thank you,
Basj,
Stardock Community Assistant