I originally purchased the Brian May pack when running Amplitube 4 and was impressed with the bundled presets overall.
I've recently moving to Amplitube 5 on a new Mac (fresh install) and upgraded to the 5 Max version but having done so noticed that some of these presets sounded odd and not close to the recording or how I recalled them on my old Mac.
Examples of these include I Want It All, One Vision and the Live 1986 and Live 2019 pre-sets.
On investigating to try and work this out I found that the Chorus seems to have also have vibrato enabled in these presets (the right hand foot switch i.e both red lights on). When I turn this off so just the chorus is on (the one red light) it seems to fix the issue.
Perhaps this was an error when moving the presets to version 5?