Agree with DSC reef completely.
The reason I asked if it came from t5 to led is because those are more difficult transitions for corals but even from led to led it could be difficult on a coral since people keep different spectrums and intensities and that’s assuming that both led are the same exact model. Going from one brand of led to another is probably more stressful but not as bad as going from t5 to led. No matter the case, they need time to adjust and it could take many weeks in some cases. Best thing to do, as DSC reef suggests, is place them in lower light and slowly acclimate them.
Keep us posted.