Hi
Uwe,
Greetings from Syncfusion support
We have delivered a
fix in our previous patch release so this fix would take some time to get
reflected on the stackblitz demo sample. So, this is the reason for the issue
in demos and not because of invalid license. But you can utilize our latest
package through local sample which is working fine and it can ensured by
codesandbox sample.
Sample: https://codesandbox.io/s/condescending-bouman-3grjc2?file=/src/index.html
Please get back to us if you have any queries.
Regards,
Theveshwar