Hi there!
I tried to deactive all plugins except GPP, GB, and GBP. The problem is the same. Besides, it happens only with Safari on iPhone, not Chrome on iPhone. I only use iPhone, so can not try on Android phones.
Another attempt is that I use AWS Snapshot to creat a exact same backup, and it turns out even more strange. The home page doesn’t have this white line, but the About and Conntact page do have it.
Is there maybe some way to solve it? Doesn’t matter if the solution is some kind of manual, or alternative way.
Thank you.
Best!