[sagacity]

This reminds of a similar issue I had recently when working with Rust and dx12 using the excellent windows-rs crates. Dx12 is designed around the concept of command buffers that only get submitted and evaluated at (usually) the end of the frame. This means that you need to take care to keep references around to the data you're submitting because otherwise dx12 will be looking at broken pointers once the command buffers actually get executed.

The tooling around this is much easier to deal with it, of course, since it's all just Windows and there's a bunch of sane debug layers that you can use.

Massive respect to be able to debug the issue on an embedded system!