Error in hole detection module

Hi all,

 

I am trying to use the commands to detect holes (hole detection module) but sometimes I get an error.

 

I suppose that it is only necessary to write the command hm_holedetectioninit and hm_holedetectionend once, which I write at the beginning and at the end of my script, respectively. I have some loops which work with some info about the found holes. But when I am running the script I get next error:

'First use hm_holedetectioninit command to initiate hole detection'

Does anyone know why I get this error?

 

Thanks in advance,

Alex

can you share your script ?