Schema Validation Error

[//]: # We have recently migrated to 10.15 version , currently we are facing issues while validating the schema for a specific field. We have kept the patterns in the XSD, the same we have tried in 9.10 version, it is working in 9.10, but not the same in 10.15.

We have tried modifying the encoding settings in the IS Extended, but still it didnt work.

Any suggestion please .

Please provide a sample XSD and and XML data if possible, and/or related logs. It may be a simple configuration error/difference. I also recommend cross-checking extended settings(from AdminUI => Settings => Extended).