I recently upgraded Kubuntu to 19.10 on a brand new HP computer. I installed Thunderbird 168.1.2+build1-0Ubuntu1. On the list of emails when I tag one of the emails, the color of the tag does not show up on the listed email. It does show up when I choose that email. On my HP laptop, with the same version of Kubuntu and Thunderbird, it works as it always has. When I tag an email, it shows up in the list with the color of the tag. I have used Thunderbird on Kubuntu for well over 10 years and I have never seen this problem. Tags are very important to me when use Thunderbird. Any help or suggestions would by appreciated.

Thank You