[While we're all getting ready for פורים, let's take a look back at חנוכה:]
In 2013 I posted:
I might have missed this one: someone came over to me at the end of the עליה to tell me that he was pretty sure that instead of וְכָל נַעֲשָׂה בַמַּרְחֶשֶׁת, he was pretty sure he heard נַעֲשֶׂה (with a סגול.) He was pretty certain that changed the tense to future, "let us do." I tried to suggest that perhaps נַעֲשֶׂה is simply the masculine version of נַעֲשָׂה and still means "made." However, I don't think that is correct. In מעוז צור we say נַעֲשָׂה נס לשושנים. Even though נס is masculine, it is still נַעֲשָׂה. So it would appear that if he heard correctly, then it was in fact a serious error.
However, later that year I actually posted specifically about that line in מעוז צור and thanks to some reader feedback, it produced some interesting revelations as to the proper pronunciation. There are even more links to follow there. With much confusion surrounding the issue I think the one clear outcome is that this should definitely be corrected (in the laining, not in מעוז צור).