3D FlipBook - Interactive corners in Pan mode (3D) is super buggy

Hi,

I love the plugin, the corner detection and the 3D/pan mode BUT both elements works terrible together. You can use the smart corners just 1/10 times so the user experience is totally ruined (short video example: https://i.gyazo.com/761d90cdd1527123aefeff8c5326595f.mp4). Is there any way to make more flexible/relaxed the corners detection? For example, here it works like a charm and no matter when you click: https://online.flippingbook.com/view/631977/

Many thanks!