This is the RadzenMask component.
A probable Bug was found in the Radzen.mask Javascript method that is in the Radzen.Blazor.js file.
When the [characterPattern] property is informed and matched with the user input value, the return is a single index array containing all the contents of value at index 0.
In the first iteration of the [for] command, all value content is placed in the [formatted] field, and therefore formatting does not occur correctly.
Test and proof-of-concept files:
https://drive.google.com/drive/folders/1WzR7rdqFQ_ZFqpzbORLbqGe6BjgUGPyy?usp=sharing