Patched the boss not saving your medal and memory.
If you have played the boss already and didn't get the rewards, go to
C:\Users-User-AppData-LocalLow-Mechano-Candy Rangers
Find the .CandyRangers file and open it with notebook
Adding these two lines should do the trick
area_tower-bossmedal0_bool: True
area_tower-bossmemory_bool:True