Scroll freezes after popover page dismissed

Dear community,
I have a long list that I can scroll up or down normally. However, if I open a popover menu and dismiss it, I can scroll it anymore. It just freezes. There is a workaround of the issue which is using:
popover.onDidDismiss(() => {
this.pageTop.scrollTo(0, 50);
but it’s a bit ugly. This issue only happens to iphone x ios 12.4.1. No issues when running on iphone 8 12.1.4 and no issues with Android either.
Any help would be greatly appreciated.