the Glue in limb is what will be damaged. I never put heat on overlays, if they come off no biggie, but if you overheat the bow itself that’s a bigger prob.
EA40 will set at 70 f in 24 hours. I tested on the bow I hunted with last two years, it never saw the oven... no probs with overlays or that bow . I do heat the other bows I make but not overlays.
Not sure what to tell you on this one without looking at it...