Yeah my SD does that, I just bring the rpms up a bit for a minute or so and it goes away.

I diesel purge did nothing and the valves are within spec, fresh glow plugs as well.

I have a large amount of blow by, I suspect its a weak cylinder that just doesn't catch right away. Since its a 617 its probably cylinder number 1.

You could have the injectors checked, but if it was an injector it should skip all the time.

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200