We have StoreFront setup behind GSLB running v2402 CU1. When we do GSLB failover, launching apps from CWA doesn't work until we reset CWA or restart SF servers in non-active datacenter. Launching apps from browser is no problem. We don't know when the issue started but this was working earlier, we noticed few months back when we did DR failover testing. Error when launching apps - Unable to start Anyone seen this issue?

Do both of your StoreFront deployments have the same base URL? If they have different base URLs then CWA won't recognise them as being the same store and will get confused if you fail over.

Yes, both have same base URLs