Garageband plugins - FX and AMP, two at once??

  • Looking for feedback here - new to Bias FX and Amp, using with Garageband, and this has to do with how they work together. Has anyone else inadvertently found they were running a Bias FX sound plug-in, AND an Bias AMP plug in on the same track ? I wasn't even aware of it until I saw both plugins listed in GB, I turned off the Bias AMP plugin, and the sound completely changed. (It was a clean amp running in Bias AMP). Normally I just config my AMPS in Bias AMP, and just load them into Bias FX. So now I have a custom patch that only sounds good to me with the other AMP running at the same time. Happy accident?