Mold or dead leaves?

This is a Purple Lemonade Auto.

I am a first time grower and I have never had plants in general with dark leaves. The bud sites don’t look to have rot but there are some leaves that are dying and look like the possibly have mold on them? Is this ok and is there any chance of recovery? Or are they done for?

My grow tent has been at around 45% RH and I have 2 fans, so I’m not sure how it would have started to grow mold.

It’s also pretty close to harvest, so can I harvest them to save what’s there?