If you have to run in parallel mode (sequential is off), you can modify the following line:
in interval_program.pde, around line 191, change
if (curr_minute != last_minute) {
to
if (seq==0 || curr_minute != last_minute) {
this forces the algorithm to check program match at all times, instead of once every minute. Again, this change is very experimental, so use it at your own discretion.