Multi-select drop down is causing data validation errors|VBA & Macros|Excel Forum|My Online Training Hub

Hello,

I am using your very helpful code for creating multi-select drop down lists which I found here.  It appears to be working just as it should but I noticed that it is producing data validation errors in the cells where I've used it.  It's not a major issue but I'd like it to stop producing an error if possible so I was wondering if it was caused by a mistake on my part.

I have some experience with using excel but have never really explored the VBA code so this is new to me.  I'm using Excel for Mac (version 16.48) and my workbook is attached.  An example of the error is visible in cells E67 and H67.

I hope you can advise.

Thanks and regards,

Patrick