KDenLive has been my application of choice for video editing for the last 12 months or so. I use the “standalone” Windows installation. Each time a new version is released (20.04, 20.08) I’ve had this error come up when I try to render a video:

this application failed to start: No QT platform plugin could be initialized


I’ve looked it up twice now, and for future reference, here is what I needed to do both times: Fix the paths in environment settings, because they retain the location of the previous installation:

These paths have been adjusted to match the new install for 20.08