Can deleting a discontinued classic app mess up the new app's custom domain?

[ThinhDinh]

Yes, there were indeed issues with custom domain around 2 weeks ago. Here’s the official suggested workaround.

All custom domains fail to resolve

Yesterday, we asked you to update your DNS A Name records to a specific IP address due to an unexpected issue with two of our hosting IPs. Earlier today, the third IP address also became unavailable. Our provider has now given us two new, stable IP addresses that are safe to use going forward: 162.159.142.16 172.66.2.12 (Please replace your existing A Name records with this new IP.) NOTES: It takes a little while for the DNS changes to be applied, so be patient. The IP addresses in the Cu…