Help needed with high poly mesh and new low poly mesh


Hey there, i have some issues with a model i’ve done recently. This is the thing: i made a low poly treasure chest model, with uvs and i took it to zbrush, then i made a high poly and i texturized it. At this point, it is all ok, but… i saw that i had some problems with my low poly uvs, two things were missing, and they greyed out in substance. I corrected them, but now, my high poly and my NEW low poly, have different Uvs.

Is there anything i can do? I worked with 3ds max, zbrush and substance painter.