Do you have also problems with light effects on a layer which we have eariler free transformed? There is one slice, approx 0,5 -1 cm high, wide through whole picture on which light is not applied...the rest is ok. Always on lower part of image...
Also converting into intelligent element does not help..any ideas what to do?
Provide a screenshot and proper technical information like system specs and what version of PS. Nobody can help you based on vague and generic descriptions.