The phrase "a puzzling lack of" is correct and usable in written English.
It can be used to describe a situation where there is an unexpected or confusing absence of something.
Example: "There was a puzzling lack of enthusiasm among the team despite the project's success."
Alternatives: "an inexplicable absence of" or "a surprising deficiency of".
And he can still be frustratingly inconsistent, given to illuminating turns in his best moments but offsetting those with muddled passages and a puzzling lack of subtlety.
For reasons having to do with a dearth of funding and a puzzling lack of interest in official quarters, no one has attempted to dive nearly as deep since.
While a great deal of media time and energy is spent discussing the latest translation of War and Peace or the artwork in the refurbished St Pancras station, there has been, with a few notable exceptions, a puzzling lack of effort when it comes to something as critical as expressing support for an increasingly demonised minority in our society.
They evinced, rather, a puzzling lack of passion.
But in the Senate, thanks to ferocious bank lobbying -- and a puzzling lack of support, if not outright opposition, from the Obama administration -- it was defeated by a wide margin, with the bill falling 15 votes short of the 60 needed to cut off debate and move to a final vote.
So far progress has been patchy, not least because of Russian influence: Bulgaria's puzzling lack of interconnectors with Greece and Serbia is an example.
For some time, these guys have been scratching their heads over the puzzling lack of mass out there in the cosmos.
When his name comes up in conversation, the buzz over his puzzling lack of success and the anticipation of his next movie can bring people from all corners of a party to voice their affection.
Even if the dodecahedral universe falls apart, as seems likely, physicists will still have to explain the puzzling lack of large-scale structure in the WMAP data.
His kiddish laughter continued despite an awkward silence by others in the room, and was demonstrative of Newton's puzzling lack of self-awareness.
The puzzling lack of apoptotic response following major lysosomal damage was difficult to explain.
