Strange UI scrollbar handle recttransform behaviour,Cant resize clickable area on UI handle

The clickable area for the handle on my scrollbar used to cover the entire sprite, after closing and reopening the project, the handle's anchor now looks like this cannot be resized, and whenever I try grabbing it in play, it only lets me grab it if I click on the very middle. Not only that, any new scrollbars I create act the same way. Any ideas as to what might be causing this behavior, or how to fix it?

Thanks!