Hi Dermot,
I’m sorry to hear you’ve encountered difficulties. That does sound rather odd and I’m not sure what would cause it, exactly (nor have I seen similar reports from other users).
I’ve turned off all other plugins and have downgraded Events calendar Pro and Events Calendar to 4.3.4 and I still have the same problem
Thanks for giving that a go. As part of the process, were you also able to switch to a default theme and did that make any difference at all? Additionally, would it be possible for you to share (by private reply if you prefer) a screenshot of the Community Events “My Events” screen, if that is where you saw all the events from February?
Thanks!