wrong room

Version: 6.4.6 (53970)

I host a meeting weekly.

The meeting is established as a recurring meeting. 

Each week, I send an e mail to potential participants to invite them to the meeting.

I copy the meeting link from the zoom software and paste this into the e mail. 

For the past two weeks, I have started the meeting from the zoom software. 

The participants click the e mail link and get a message that the host is currently in another meeting.

I do not get anyone join me in the meeting.

The workaround is that I close the meeting I have started from the zoom software and click the link from the sent e mail.

The meeting starts and everyone joins. 

The meeting ID in the zoom software is the same as the meeting ID in the email. The e mail meeting invite is copied and pasted from the zoom software.

What am I doing wrong and what to I need to do to put it right?