Benjamin Chrétien

Indeed, confirmed with a video, and killing compton solves it. You can find my compton configuration file [here](https://github.com/bchretien/i3-config/blob/master/compton.conf), and I use `v0.1_beta2`.

Hi, For the 2 `atomicAdd`s, can't we replace the `int32[2]` with a `uint64`, and do a single `atomicAdd`? That way we don't need a lock to deal with the critical...

:+1:

@InduCherukuri / @Exception4U: as a simple workaround (but probably not solving the root cause): ```python # Important to allow xys grads to populate properly if self.training and self.xys.requires_grad: self.xys.retain_grad() ```

@jb-ye: it happened a bit at random, mostly when I interacted with the viewer and modified the settings (e.g. resolution of the rendering). Alas I cannot share the associated dataset.