I have been using my Yongnuo 605C as a wireless flash trigger for sometime. At times I would separately use it as a remote shutter release. Last week I started doing both at the same time (remote shutter release and a flash trigger at the same time because my flash has a build in receiver). It worked wonderful. Tonight it suddenly didn't work anymore. I tried putting all the settings one at a time. TX, TXR intermittently and also at the same time. It just wouldn't do both anymore. I am not too savvy about how these wireless things work. What settings do I need to get it going again?