Leaves brown before harvest

Hello it is not bud rot. It is normal because you are flushing so your plant is sucking all the energy stored in the leaves and this is what we want. Don't worry you doing a good job. Continue. Bye

just do a good trimming in the most affected buds before driying, is totally normal to have yellowing and browning, they're in a lack of nutrients by the flush

What you are seeing is the plant fading. It is using up all the nutrients it has stored in its leaves. This is a normal sign, and color morphing is common if they can now. Basically your plant is ready to cut down at any time you hit a desired ripeness. Good luck and enjoy the harvest. Nice fat colas on her. 👍🤜🤛🌱

https://cannabis-science-consulting.com/flushing-cannabis/

I would honestly cue the top off the worst one and check internal. The others seem okay but that one nug does look like it has issues.