MR6150 - Can't connect to only 5G Bands

I recently upgraded the firmware on my Netgear M6 MR6150 and for some reason I have lost the ability to connect to only "5G" bands under CELLULAR > BAND REGION. I used to have this option before. Under Cellular now I only have 2 options, "4G" and "ALL (4G + 5G)". 

I already had the MR1100 and I bought the MR6150 specifically because of the 5G capabilities. Without having the ability to connect to 5G, this is a loss for me. I paid over $600+ for this. I am on the latest firmware NTGX65_12.01.47.00.

Can someone please help me or guide me on how do I get the "5G" only band selection under CELLULAR

Attaching image as well