Unable to Add to or Modify Reply Field in Tickets

Unable to Add to or Modify Reply Field in Tickets

As of this morning, I've had a few users report not being able to reply or input into the reply field on tickets.  You can't select the box to even type in.  We've had a few users report it, all running different versions of Chrome, some running the same version as they were using yesterday with sessions still open.  Anyone seen this?