Activity Monitor Network not showing received data per second

Hi everyone,

I have been experiencing an issue with Activity Monitor since upgrading to Sonoma. The issue is that the download speed is always showing zero. The strange thing is that the upload speed is working just fine, as is the total number of bytes and packets downloaded also looks correct. It's just the download per second that's zero. It's very strange. I've searched the forums about this and can't find anything on this topic. I've attached a screenshot below.

My setup: MacBook Pro 16 in 2019, 2.4 GHz Intel Core i9, 32GB RAM, Sonoma 14.4

Thanks for your help!