always errors when expanding bullets in ipad version

When I am trying to click the little triangle icon and expand the bullets on ipad, often times it does not expand but promts the keyboard up. It does not happens every single time but it often happens. Whenever this happens I need to restart workflowy and it became fine. But then it means one cannot multitask as one has to flip between several apps. Please fix this so that the ipad workflowy can become a really good reading tool.

FYI I have a ipad pro 2018 11 inch. Thanks a lot

Xun