Yep, I was able to replicate it.
Turning Down the shield alllows cookies (third party cookies), but they cannot be deleted from trash can.
A user needs to visit the site, turn shields back On and then the entry will be automatically removed.
If click on trash can related to cookies for other sites it will clear those cookies, but earlier it was not able to do it such a thing when in the sheilds icon you allow cookies via those three options. They solved the bug but another bug still exists what you just referenced.