See if the same thing happens when you double click the object in the library.
I'm also facing the same problem. Yes, this happens when double click the object in library
This would normally happen when you have a Button symbol on stage and the 'Enable Simple Buttons' setting is enabled.
Can you check in your Control menu, if the option 'Enable Simple Buttons' is enabled? If it is, click on the option to disable it and then try double clicking on your symbols.
In case you still face the issue, can you send across your test file for investigation.
I tried as Nipun said, but It's not worked out for me. And I'm getting this problem with movieclips.
Try using the menu option "Edit in place." If that works, you can create a custom keyboard shortcut.
Hi Sri nava,
Can you upload your file and share a link so that we can check what might be going wrong. You may just send a test file with your symbol copied into it but please make sure that the issue is reproducible in the file you share