@mishavee yes, Glitch project IP addresses will change with some regularity as we recycle project hosts. Your IP could change as frequently as every 12 hours when your project is stopped on our regular schedule and is pulled from all of the AWS us-east IP addresses (What IPs must I whitelist so my Glitch project can access my MongoDB database? shows a way to find that list if you’re interested - it amounts to thousands of IPs).
Given that @EBB has whitelisted all IPs I don’t think this is the issue.