An appstore mixup has been preventing customers from installing MrMC on the Amazon Fire TV Cube. It turns out that when Amazon’s automated system marked MrMC as compatible with the Fire TV Cube, it incorrectly chose the 64-bit version of the app as the one to use for the new device. Since the Fire TV Cube is running a 32-bit operating system, MrMC became incompatible. The mixup has now been resolved and MrMC is available for the Fire TV Cube. One commenter noted that the Fire TV Cube was asking them to purchase MrMC, even though they already bought it previously. That wasn’t the case for me. If that happens to you, try going to the Fire TV Cube’s settings area and select “Sync Amazon Content” from the “My Account” menu on the far right. You could also try clearing the “Appstore” data and cache under the Applications > Manage menu.