When you receive an example image from WhatsApp, the first image is not displayed, then if you receive another one, the 955 displays the first photo you received. Come on Garmin, implement a feature all the way. Darnit!
I received a pic on signal which displayed as an icon of a folder. Whoops.
A possible explanation for all the nonsense is that there is no formalised testing regime for software and it is left to individuals to decide how a feature is tested. So depending on who wrote the test scripts (do they have any?) will determine whether something works fully, partially or not at all.