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Hi @Kieran McVeigh

Welcome to Q&A Community! 

To better understand your situation, please confirm the following questions: 

• May I know if you're having a Personal (@hotmail.com, @gmail.com) or Work/School account (@yourcompany.contoso)? 
• Did you set the meetings in Private or Channel Mode?  
• Did you set meetings for Fridays and the others on the same date? Please specify which date the issue happened on your side. 
• Could you please ask your participants to try scheduling weekly meetings following the steps you did to see if the issue occurs? 
• Have you tried signing out and signing back to Teams? 
• Have you tried scheduling the meetings on another device? 
• Have you tried clearing Teams cache? 

If you haven't, please try clearing Teams cache and let me know if there are any changes: Clear Teams cache - Microsoft Teams | Microsoft Learn 

1. If Teams is still running, right-click the Teams icon in the dock, and then select Quit or press Command (⌘)-Q. 

2.In the Finder, open the /Applications/Utilities folder, and then double-click Terminal. 

3.Enter the following commands, and press Return after each command:   

rm -rf ~/Library/Group Containers/UBF8T346G9.com.microsoft.teams  

rm -rf ~/Library/Containers/com.microsoft.teams2 

4.Restart Teams. 

Moreover, you may consider creating one-off meetings first. Then, reopen it, and set it to repeat weekly. This worked on my part. 

Let me know your updates to the questions above and if any of them helps, I'll assist you further. Look forward to your response. 

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".  

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