there is a bug - you might be experiencing - here is the fix...put all your motes in vault - then redo the meatball boss. Kill all ads 1st before killing boss. You will then get your exotic mote... That said, if you are ready to kill the final loss but it is not the right boss - immediately go to the landing then immediately go back to blooming - you should keep your level 4 so you can do the new boss - Mr, meatball... good luck - Isaw this on youtube... from Houndish https://youtu.be/9ZJyWleqP_E?si=OPYd4sNtB7tsHL68