Hi Pio,
Thank you for contacting Syncfusion support.
We have validated your query “‘Newtonsoft.json’ dependency version mismatch issue with ‘Syncfusion.EJ2.MVC packages” and we can able to replicate issue at our end. We have logged this as issue, and we will include the fix for this in our upcoming weekly patch release which is scheduled on July 13th, 2021. We will update you once released, and we appreciate your patience until then.
Please get back to us if you have any queries.
Regards,
Muthukumar K