One major bug in one 7 is that whenever you open a message then each time we have to scroll download for reading it. It is not directly showing while clicking on the notification from the drop down list or pop up of notification.
And another is the loss of highly appreciated default filter named as "ivory" kindly add it back.
Kindly complaint to Samsung customer support through Samsung Members App as error report also send log files Along with this error report for this issue and wait for next update may be fix it by Samsung team soon. If you like please accept as a solution it's help to others users also, click on 3dots in my reply section and click on accept solution. Thanks.
