Light broke Mid Flower, had to purchase a new one. Will plants be okay

won't make much of a diference. you only had a couple days of drastically different wavelengths, but the newer grow lights all have a very similar - those diagrams for a light showing density of each wavelength with peaks in the blue and red region as curves on a graph. If the HLG is the same CCT, it's going to be very, very similar.. even if it is 3000K vs 3500K, it's very similar. does the plant adapt pigmentation to the light it receives, sure.. and in my extreme cases it might matter but you should be fine. I doubt you can notice a difference at the end with your eyes.