Unable to drag any sequences to new bin/folder

Hi there,

I have a project that won't let me drag any of the sequences I've got to a new bin. I should point out that this was once a team project that I converted back to a normal project. Dynamically linked comps that are in the project can be moved to other bins fine, as can clips, stills e.t.c. It's just the sequences I'm unable to move, which is a huge problem.

I've tried creating a new project, and importing the sequences there to try and the problem still persists. I've tried copying and pasting the sequences but they won't paste. The only thing I can do with them is duplicate them. It's like they're locked, and I don't have this problem in any other project. I can only assume it's a result of it formerly being a team project, but can't possibly think of a fix. Help?

(I've attached video of me being unable to move the sequences, but everything else moving fine).

Thank you