Hi Laced, here is what Crowdcast suggested. We also gave them your email so they will be reaching out to help.
—If you’re experiencing issues with viewing replays on Crowdcast using an iPhone or a Mac with Chrome or Safari, you might want to try deleting and reinstalling the Crowdcast app on your iPhone. For Mac users, ensure that your browser is up-to-date, as an outdated browser can cause issues with Crowdcast. Chrome is the preferred browser, but if you’re using Safari and encountering problems, consider switching to Chrome or another supported browser like Microsoft Edge or Opera. Also switching from home network to phone data can work