I've noticed across multiple projects that if I go into an existing data frame and switch out the source map frame/tab, ie this:
Pro will hang at working for time intervals on the order of days, but it will usually eventually take if I wait long enough (done by leaving it running it on an unused machine). Sometimes Pro crashes after a good while. I find myself having to recreate things needlessly to avoid this, and am wondering if anyone else can report and/or shed light on possible ways to speed it up? The projects I do this on have anywhere from 2-10 existing map frames/tabs.