Mediabay distorts audio when looping

I have this issue,

When I am browsing through Mediabay and I select a file, I then import the file into the arrangement and the left side of the channel is completed distorted. The worse thing now is that Cubase seems to be writing this to the original file so I am starting to loose my goto samples because of it, has anyone come across anything similar ?

Thanks

Hi,

Could you try in Cubase Safe Start Mode [Disable preferences], please?