The leaks are known issues with Stencil (framework used under the hood). So the good news is its known and tracked. The bad news is, there's not much I can do other than wait on the Stencil team.

Here is the main issue (but there's a few) if you want to track updates: https://github.com/ionic-team/stencil/issues/3607

Same. I can't make it happen, but basically any action can trigger it any any time. I've even had it happen twice within a minute or so.