Weird spikes on MB Trading?

Hello,

I am using the MB trading (UK) demo on MT4 and I have notice these weird spikes that come every minute or so and go to the same point (downwards). At the same time on the oanda web platform there are no such spikes. Anybody know what they mean? I have tried to google it but wasn’t really sure what to look for and didn’t find anything either.

Is this evidence of a broker trying to hit peoples stops on purpose? Seems too obvious though, and I guess it shouldn’t happen with MB trading since they are an ECN broker, right?

Thanks for your help,

tak