independent super sudoku

Hurmf

I've been trying to complete these for the last 6 months and only completed one (with help).

This morning got myself a coffee to give it a blast and it is already wrong.

There is two D's in the colume on the left. Is this a common accurance in the paper?

thee glitz

There shouldn't be 2 Ds, you may have made a mistake!

I did one of these once on a 3hr bus to Galway but didn't get it complete til later.

There's often mistakes in the Intermediate daily puzzle (I convince myself).

Ted_YNWA

It was a mistake by the Indo, there are two autofilled D's in column 1

Cute Hoor

This is the first time I've seen a mistake. The D in the top left hand corner is the wrong one, don't know what it should be replaced by though so when you get near the end there are a number of options. Good sudoku, but it's just a question of time on getting it out, 2 hours should do it, much under that and you're good I reckon.