debug hangs when debug code with Mnist dataset

[wztdream]

Hi, I am using vscode and trying to debug this repo, I set break point at line 32

https://github.com/FishAres/RNP/blob/c9571301627cb4989a7cada18de168bc257fc03d/scripts/vae_mnist.jl#L32

then press F5 for debug, but my computer keep running and not stop at least for 20mim. I tested the debug function for simple code, they works well. So I suspect the debugger function seems can not deal with Mnist dataset.

I think vscode are using this repo as backend, so report it here. I also follow documentation and use Debugger in REPL and the issue is same.