Hello krystenr1, my Sedum rubrotinctum does that reddish color tinge during winter too, then it slowly turns all green as the summer heat comes about. But I grow my plant outdoors year round, it gets part sun/part shade.
Between Sedum rubrotintinctum and Sedum morganianum, S. rubrotinctum is more able to take a bit of direct sun but it has to be acclimated properly. Like any succulent that has been grown indoors or overwintered indoors, it has to be positioned to part shade outdoors till it gets used to the ambient heat, humidity etc. If you position them right away to direct sun, then you will surely end up with fried succulents as what occurred to your plants.
If it were early Spring right now or early Fall, I would ideally cut the remaining rosette tip, let it callus and stick it back to soil. But it is the height of summer now, so I would not do it, too stressful already to your already stressed plants. So again be patient, let that plant adjust/acclimate to your outdoor shade for now. I find it helps to cool down the roots by top dressing my succulents with a mix of pumice and chicken grit (insoluble crushed granite).
It will be an ongoing part of this plant's growth maintenance to cut the plant at a lower length after it has dropped the lower leaves. Its upright growing habit will make it look rather leggy as more stem is exposed. It can still grow new leaves from the exposed stem but it grows newer leaves faster at the center tips.
