Results 3 issues of sunway

## Description Error information: called `Result::unwrap()` on an `Err` value: Shader compile error: Failed to compile vertex shader: E0: 0:2(10): error: GLSL 1.40 is not supported. Supported versions are: 1.10,...

bug

although the ids is split into `train` and `val`, you are always sampling from the whole ids