My result = lsl_resolve_byprop(lib,'type','EEG'); wont catch anything

[Kuritzu]

My result = lsl_resolve_byprop(lib,'type','EEG'); wont catch anything. I have a biosignalplux ECG or EEG sensor and while trying to catch data on the loop it doesn't catch any. It works fine and the Signals software, it shows readings. Any clue on what it might be?