Thank you for reporting this. I will fix it in the next release.
I definitely see the issue with Last Updated on my end. You can fix this simply by adding the following code to Admin Panel > Theme > Custom CSS:
@media only screen and (max-width: 760px) {
.list td.osta_lastupdated:before {
content: "Last Updated";
top: -4px !important;
}
}
Unfortunately I do not see the issue with Assigned To on my end. I wonder if you’ve customized the order of columns in the desktop version of the Ticket List (which will also affect the mobile version)?
If you would like me to try to figure out what is going on I will need access to your installation to investigate.
I will mark this as resolved for now, but feel free to still post any updates or questions here.