Image & solid colour not adding to Power Bin

Hey guys!
I have an image & solid colour both with video transitions on my timeline and they will not add to my Power Bin. I have multiple items that are the same already added to my power bin and i am not sure why these specific ones will not add.

I am dragging these from my timeline to my power bin and they are not loading in there. I have tested a clip from my timeline and it successfully added so Im not sure whats happening here!
Hopefully can get some help!

thanks!

Have you tried dragging one at a time?