One of my user has tried to install widget PSX-7 (https://apps.garmin.com/apps/1944b8b4-409e-482d-b7b3-becd4e8b1b05) but he couldn't due the incapability error but he has installed PSX-6 (https://apps.garmin.com/apps/e4ce9423-c37e-4aa7-b778-f24c2347c923). Both are built the same SDK (7.3.1m PSX-7 few days later), both have the same min API level to 2.4.