I suggest making how to dismiss an error or notification window more obvious.
When I first encountered such an error window, I kept tapping on the "X" symbol on it's left margin, and got frustrated when that didn't close it.
Only by accident did I discover that I had to swipe from bottom to top to make it go away.
I suggest adding a visual clue to it how to dismiss those windows. It seems that there is a convention to put an upward pointing chevron symbol at the bottom of such a window as an indication of "swipe up to dismiss".
I suggest making how to dismiss an error or notification window more obvious.
When I first encountered such an error window, I kept tapping on the "X" symbol on it's left margin, and got frustrated when that didn't close it. Only by accident did I discover that I had to swipe from bottom to top to make it go away.
I suggest adding a visual clue to it how to dismiss those windows. It seems that there is a convention to put an upward pointing chevron symbol at the bottom of such a window as an indication of "swipe up to dismiss".