Tracked down the issue, just a minor typo caused itIt could just be me but I'm having issues with setting the per forum reactions. I've tried unchecking enable, checking disable, and a few combinations of which. Nothing seems to stick. Could this be due to I'm logged in as an admin and I always see them all? I have one forum that is a project forum and wanted the helpful, creative, etc. Instead of the normal emotion ones but no matter what options I set they all show on all forums.
On line 63 in src/addons/ThemeHouse/Reactions/XF/Template/Templater.php replace
$reactions = $reactHandler->buildValidReactionsList('reacts');with
$reactions = $reactHandler->buildValidReactionsList('react');. Since it's such a minor change that will only affect people using that option I've just uploaded it as a hot fix on 1.0.4 so you can either make the change directly (which will cause the file health system to flag the file) or you can just download the 1.0.4 package and upload the files