From what ive seen, Most of those that have the Reaction Problem were all members (of course), and some mem+, all the ones that actually said that they do not have this Problem were prestige 1 and/or up
so it seems to be a Problem related to the Member User Group, which after Setting the LU Page , has been cause for Another Problem we have Found (only affects a few, and will most likely be fixed in a few)
we will be Testing a few Things, and Restore the Reaction Perms as soon as Possible