Reloading Prescaler on conatenated counters

Hi there,

I have concatenated CC40 and CC41. This works fine as long as the prescaler of CC41 is set to 0. However, when I try to set the prescaler of CC41 to 1, the counter does not run.
Changing the prescaler on non concatenated counters does not give any problems. I have not found any docoumentation on this.
Is there anything that needs to be set or is the prescaler not usable in conatenated set up?

thanks for your help.