RAX45 Port forwarding rule not accepting comma

[AndyPi]

Firmware V1.0.11.112_2.0.77

Trying to add a UDP port forwarding rule and no matter what i type, it will not accept comma's in between port numbers.

Here is the result

I've tried using comma with no space and just spaces. I have no idea what is going on.

[plemans]

does it work if you add them individually? 

I seen a post a while ago that had this same issue that had to add them individual unless they were doing a range