RTC, dashboards are not loading on some machines.
One answer
You could try clearing the browser cache or using a different browser on the machine where the issue is reported.
If this doesn't help, can you provide more details:
a. Is it specific to user ?
b. Any differences between the two machine, i.e., between where it works as expected and where the issue is seen ?
c. Any recent updated related to the java version / OS patches / browser upgrades ?