I did a quick look using my cellphone but it seems you are not using Meteor patched Node.js 14 version.
This is the first release where Meteor fork of Node.js is actually being used with changes made by Meteor team.
btw, the first changelog was missing some changes (including the Node.js patch) then maybe you didn’t see it but I warned Meteor core team and they updated it
Anyway, I don’t think this is causing your issues because you are just running the same Node.js version from before. It could be some other change in Meteor code itself. I will investigate more and reply to your email as well as we are testing this new version of Meteor before recommending the upgrade for zCloud customers.
And check our open-source images, they can help you, I talked about them here.