Hi @Ashutosh Kumar Verma,
Welcome to Microsoft Q&A!
Did you set a breakpoint before?
Please close all running Visual Studio instances and update your Visual Studio to the latest version.
Then, launch your VS again and go to Tools > Options > Debugging > uncheck “Enable Just My Code”.
Sincerely,
Anna
If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment". Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.