I have installed v10 of ACDSee Pro,as v9 does not recognize the CR2 files of the 5D Mk4.
I take Small RAW pics. They show fine in the viewer,but as soon as I open the `Edit` or `Develop` tabs,after a moment of looking normal,the pics turn strange colours,and the Histogram shifts.
I have double checked all settings,and all seem normal. -- I have `Embedded JPEG` selected in the General Options.
Pics taken with my 5D Mk3 do not do this.
Any advice gladly received,as this is driving me nuts !!

Thanks
Chipmunk22