Monitor will not wake up

I have my raspberry pi, MacBook and ASUS laptop connected to this device with the output to a LG 32" 4K monitor. Seems to work fine if it hasn’t been sitting for awhile. If it has been idle for several hours I cannot wake the computers. If I manually turn on the monitor I get no signal. I have to unplug the Kinivo for approx 5 seconds and plug it back in for it detect the signal once again. Anyone have seen this behavior?