Hi @Vaidheshwar Jaishankar Greetings! Welcome to Microsoft Q&A forum. Thank you for posting this question here.
Based on the information you have shared in the question, it looks like you have provided a tag with ADUGroup value "<group-1>"
. There is a limitation with naming of the group tag value. The Tag value can contain alphanumeric characters and the following special characters: . - _ ~. I appreciate it if you can assign the ADUGroup tag to a valid value and see if the issue is resolved.
Please keep us posted on your findings and let us know if you need any additional assistance.