Hi Gojko,
The fix for the issue “Drag and drop does not work on touch action in desktop mode” has been included in our weekly release 20.3.52.
Upgrade to the latest version to resolve the issue.
Release notes: https://blazor.syncfusion.com/documentation/release-notes/20.3.52?type=all#scheduler
Regards,
Ravikumar
Venkatesan
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