Using GP & Antispam Bee 2.7.1, when viewing single posts (not pages or archives) on iPad & iPhone Safari & Chrome –there is a horizontal “wiggle”.
Specifically, on iPad or iPhone, after navigating to single post, using single finger, post scrolls about 25% left or right, then bounces to re-center on release. When post is resized, using two-finger gesture, the horizontal wiggle goes away (scrolls up or down only). Wiggle reappears when post is closed & revisited.
I found issue only with GP & Antispam Bee. Don’t see problem with GP demo or with Anispam Bee & other themes (e.g., 2015 or 2016). To isolate, I activated GP, deactivated all plugins (no wiggle), then re-activated 1-by-1 to isolate Antispam Bee.
Not major problem on iPad. But, more noticeable on iPhone –scrolling down using thumb often causes page to move sideways. Trivial, but frustrating.