AFAIK the syystem should not have demanded any passwords.
Although I don't use Zoom a lot, I've noticed that the way information is passed between a website and app, on launch, can be a bit flaky. The M$Windows App version seems to have fewer problems than, say, the Linux/Ubuntu version (that I use) - but, then again, I never have problems if I get the link via email.
The link you posted, Alan, did seem to have all the information in it - but regardless of the different access permutations that I tried, Zoom kept wanting an extra passcode. Something must have been corrupting the data along the way.
Anyway, it looks like you had sufficient members present to ratify any proposals in compliance with Charity Commission rules, so it didn't make any difference to your proceedings.