Hi Diogenis,
The issue is not reproduced
with the shared steps and samples. We suspect that you have not properly
registered the license key.
To know about generating the license key,
https://help.syncfusion.com/maui/licensing/how-to-generate

To know about registering the license key,
https://help.syncfusion.com/maui/licensing/how-to-register-in-an-application

Syncfusion
license keys are version and platform-specific and the generated license key is just a string
that needs to be registered before any Syncfusion control is initiated.
Ensure that all the referenced
Syncfusion assemblies\NuGet packages are all on the same
version(23.*.*) as license key’s version(23.*.*) in your
project.
Find below the knowledge base
article to know about which version license key should use in application,
https://www.syncfusion.com/kb/8951/which-version-syncfusion-license-key-should-i-use-in-my-application
Please let us know if you have any concerns.
Regards,
Jeyaseelan M