V5 vision sensor stopped working

Two of our teams have had their V5 vision sensors stop working this week. It seems to be an issue with communication/the smart port. Both sensors have worked previously (in the last month). Here is the issue as described by one of the students:

Today we were going to start coding our new auton with the vision sensor but it showed a purple light rather than a green one and it did not show up in the v5 brain. We tried changing ports, wires, restarting the brain, restarting the code multiple times and we still have the same problem. The sensor has worked before because we have some code for it that works on our old bot. It also connects to the vision utility via micro USB and is able to see the balls like it normally would. If you have any suggestions please let me know.

Have any other teams run into this issue recently?