interacting indicator to bot

Hey guys,

the following situation.....

I'm using an indicator which is sending an event when something happend...
My own bot was registered as a consumer to this event. But surprisingly if this event rises the bot didn't receive this event.

Using the indicator on a chart it works fine, means the event will be fired and consumed by the indicator.

Is there a limitation between an indicator and a bot using events?

Many thanks for your advice.

Markus