I was a little bit busy the last few days but I have send in a support request and am waiting for a response.
Besides this following your advice I have done some testing on my demo account and got some results.
My intial code which stopped giving signals looked like this:
main code:
5 min TF:
call indicator strat -> calls custom indicator
1 min TF:
call indicator custom stoploss
When I tested this without the call to the custom stoploss indicator it worked a little bit longer but still stops giving signals after a while.
Another version without the call to the custom indicator and without the call to the custom stoploss indicator in the 1 min TF is still working on my demo account after 1,5 week, this looks like this:
main code:
5 min TF:
call indicator strat
1 min TF:
uses values of the 5 min TF
I am now testing a version were I put the custom indicator in the strat file, for now this is working but it has only been 2 days.