Hi MTO,
I have tested for this issue in our latest release Essential Suite v2.0.2.1, and the MaskEditBox correctly displays the ''°'' character in the Mask as shown in the
screenshot attached. If you are using an older version, please open an incident in Direct Trac in this regard, and I will update you with the download instructions to our latest release. Thanks for considering Syncfusion products.
Regards,
Guru Patwal
Syncfusion, Inc.