Buds with purple patches and leaves drying up.

See the other post, it think its a nute burn, give them quite some water to flush all the nutes

Hello, Might be different causes, coule be nute burn, could be heat from a too close lamp, cold normally only causes like purple buds, not really burned leaves. Check what and how many food you are providing and check the lamps or temperature at the bud sites

Its not a normal type of purple. The leaves are dying. Ill make another photo.

That could be caused by cooler night when lights turn off, when lights go out tent gets cooler at night