Time Machine problems? Try The Time Machine Mechanic. It’ll tell you what’s wrong.
It has essentially two controls: you set the period, in hours, which you want it to analyse. This now works properly, so that you can type the number in or use the stepper controller to adjust it. Once you have done that, click on the Check Time Machine button, and it will shortly come back with a very detailed analysis of all Time Machine backups made over that period, and set the ‘traffic light’ to green, amber, or red accordingly.
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