Steps to reproduce:

1. Start the slideshow of a dashboard with approximately 20 slides. Some slides should contain only one widget map, and the interval time between slides should be set to 30 seconds or more.
2. Press F12 to open the console log.
3. Check for any errors or exceptions that are captured in the log.
4. Observe if the screen grays out and then a loading circle appears after approximately 15 seconds. The next slide should appear without any delay. This problem is only encountered on slides that contain map widgets.

Result:
Please refer to the attached screenshot for further details.

It appears that the error originates from class.widget.js, specifically in the block starting with "new Promise(resolve)": an exception is caught, it is unclear why this problem started occurring after upgrading from version 6.2.9 to 6.4.2.

Expected:
There should be no grayed-out screen or loading page, as the entire infrastructure (hardware) is functioning properly. After thoroughly reviewing all available logs of all parts, I have not come across any suspicious errors that could explain this issue.

Best Regards