Just updated to today's beta and I can't seem to attach panels to other parts of my workspace.
Thank you for reporting this issue, and thanks for your patience with our response. Are you still experiencing this issue in the latest Beta build? The latest version is 184.108.40.206 as of this morning.
Thanks again for using the Beta and reporting this issue,
- John, After Effects Engineering Team
Not anymore. The beta build before this recent one fixed that.