The only thing I've ever seen is a link between specifically MK7 (currently only sourced from Natto; MK4 is what you normally see in all other fermented foods and the majority of K2 supplements; MK7 supplements are very expensive comparatively) combined with large doses of flavonoids (often found in Vitamin C complexes).
I have not seen this mentioned in a study, but I suspect the combination of both may be an issue for a minority of people. Lowering the dose or switching to a more conventional MK4 lowered their BP back to normal.
As with any supplementation, no matter how innocent, always keep a Doctor handy to run labs: the difference between screwing around and science is keeping notes.
That said, studies like https://journals.lww.com/md-journal/Fulltext/2021/06110/Vita... and https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7230802/ seem to indicate that even MK7, as opposed to just MK4, should be strongly considered for inclusion in the common multivitamin.