When I look at my rendered files subdirectory with Win 10's File Explorer, it reports too-short durations for .m2v files. The files are MPG2 for BluRay produced by VP13's Main Concept encoder. MediaInfo show the correct duration. The files are in fact the correct length, but Win 10 doesn't know that.

MPG2 files for DVDs produced from the same .veg also encoded by MC are fine.

Anyone else notice this? Win 10 did do an update a couple days ago.