I've seen that forum...

I use(d) spark continuously for more than a year and I was always recording one channel and watching another from other tuner and never had this.
But I've got tired of spark, I had flashed several enigma images when I bought the stb but never got one configured to use... until now

I'm on hyperion now and I don't have that issue but have others...if I could get HDMU to work right with recordings/PiP I would back to it straight away!