Interestingly enough, with the new 2.8 firmware released on Jan 23, with the ATEM Television Studio, my issue with the length of HDMI runs is resolved.
There's a catch though, while in the control software, you have to adjust the native 1080i/59.97 down to something else... NTSC or whatever you want... then switch BACK to the default 1080i/59.97 and suddenly your inputs with long runs will appear.
I tested this with a 50 ft 24 ga HDMI from monoprice that NEVER worked previously as an input, and BAM, it worked. And again, when it is first plugged in, it is nothing but black until I switch away and switch back. Befuddling to say the lease.
I also tested an HDMI extender from Monoprice:
http://www.monoprice.com/products/product.asp?c_id=101&cp_id=10105&cs_id=10...
I am using 100' of CAT6 UTP in between with two 15 ft runs on both ends. This also never worked in this configuration until the latest firmware and adjusting away and back the input modes.
I have tested each for over 3 hours of solid production without a hitch. It seems once it's on, it's on. I hope this workaround helps some of you out there.
