Hello Everyone,
Issue Description: While importing the package related to Modern UI files in the Customization screen, the system throws an error: “Input string was not correct.”
This issue occurs specifically when Modern UI files are included in the package. If these files are present, the system displays the error message during import.
it is happen latest Official Build 25.200.0248.

Expected Behavior:
The package should import and publish
Thank you in Advance