Hi, I have recently noticed that tag grey colour is not being shown in iOS mobile app. Is that a bug? Please check attached images:
Screenshot:
Left is mobile iOS app and right one is MacOS ASANA app.
@Sheikh_Wahab_Mahmood Welcome to the community 
On the mobile app’s Board view, the number of visible tags on a task card is determined by the available space and isn’t configurable. Depending on your device and the length of the tag names, you may only see two tags on the card. Opening the task will display all assigned tags.