HTML5 Application with Managed Approuter: sometimes prefix is added to URL

Hi experts,

I have several HTML5 applications with managed approuter as shown below. Each of them is deployed by different MTA.

If I click on the Application Name, the app content opens in a new browser.

Looking at the URL, I noticed that some apps got GUID like prefix and some don't.

with prefix

without prefix

Does anybody know why some apps get prefix?

With prefixed app, I have the following issue. So I would like to know how I can get rid of this prefix.

https://blogs.sap.com/2020/10/16/using-ui5-libraries-in-cf-approuter/#comment-568293

Best Regards,

Mio