Ethminer only mining on 1 480 instead of both

I cannot get ethminer to mine using all of my GPUs at once. Sine I was using 2 Nvidias and 1 AMD, I already have to use two separate bat files to make things work, but now that I've added a 4th card (2nd AMD, a MSI 480 GAMING 4GB) I can't get Ethminer to mine from both AMD cards. When I use one bat file for all AMD GPUs it only mines off one. But when I use two separate bat files for all AMD GPUs, they both slow down to ~5MH/s. I have no idea what to do.

List-Devices shows all 4 of my cards:

[0] GeForce GTX 1070
CL_DEVICE_TYPE: GPU
CL_DEVICE_GLOBAL_MEM_SIZE: 8589934592
CL_DEVICE_MAX_MEM_ALLOC_SIZE: 2147483648
CL_DEVICE_MAX_WORK_GROUP_SIZE: 1024
[1] GeForce GTX 1070
CL_DEVICE_TYPE: GPU
CL_DEVICE_GLOBAL_MEM_SIZE: 8589934592
CL_DEVICE_MAX_MEM_ALLOC_SIZE: 2147483648
CL_DEVICE_MAX_WORK_GROUP_SIZE: 1024
[2] Ellesmere
CL_DEVICE_TYPE: GPU
CL_DEVICE_GLOBAL_MEM_SIZE: 4294967296
CL_DEVICE_MAX_MEM_ALLOC_SIZE: 3019898880
CL_DEVICE_MAX_WORK_GROUP_SIZE: 256
[3] Ellesmere
CL_DEVICE_TYPE: GPU
CL_DEVICE_GLOBAL_MEM_SIZE: 4294967296
CL_DEVICE_MAX_MEM_ALLOC_SIZE: 3019898880
CL_DEVICE_MAX_WORK_GROUP_SIZE: 256

For each AMD card, I've tried (device 3 for the other card):
ethminer -G -F http://us1.ethermine.org:5555/... .rig3 --opencl-device 2 --opencl-platform 1

And when trying to use both, I use "-t 2" and "--opencl-devices 2,3"

Please help! I plan on adding a third AMD card if I can get this working.