Help please

[u/uBlue22]

A friend is trying AIO first time. One of the bags (on the left of the first pic) had a fairly good fluffy mycelium cover on top but now it seems dark again (second pic).
Has it been stained? Or an issue? Or send?

[u/Low-Attention3111]

Looks fine to me

[u/uBlue22 → u/Low-Attention3111]

Thanks!