I've experienced a small graphical issue with Curtains with all the in-build Stardock Curtain themes (this includes the ones provided by Danilo Oliveira).
The Windows 10 search bar is graphically obscured when not in focus, and switching themes from dark to light ones makes it harder to see but it's still there.
Out of focus seach bar:
In focus search bar:
My current Win10 version is:
OS Name: Microsoft Windows 10 Pro
OS Version: 10.0.19042 N/A Build 19042
But this has been an issue for me for more than a year, so yeah, several Windows builds.