After a recent update I can no longer see the repeat values in the web UI for workouts

When I create a new workout and add a repeat, the box for entering the number of repeats won't accept a number nor do the up and down arrows work. This obviously makes it impossible to create the workout. This is a new problem as I've added repeats easily to previous workouts. Something gone wrong with a recent upgrade to the site? How to get it fixed?
Are you using Firefox? Workout editing bug in Firefox, can't see repeat values
If you use Chrome (or Edge) it will work. I only see that issue in Firefox. If you change the input type from "number" to "text" or remove the style "box-sizing: border-box;" you can temporarily fix the issue. There are probably more ways to fix it temporarily but those are the once I tested now.
Report it to Garmin Support: https://support.garmin.com