Hi Jcuperus,
Welcome to Meraki Community 🙂
We would like to sincerely apologize for the caused inconvenience.
There is known issue on our side that has been raised with our Development Team. They are actively working on a fix.
Workaround: using "/manage/dashboard/tcpdump" at the end.
New version - Change this:
https://nXXX.meraki.com/XXXXXX/manage/packet_captures/new_capture
To Old version:
https://nXXX.meraki.com/XXXXXX/manage/dashboard/tcpdump
If you have any questions, please don't hesitate to contact us.
Have a wonderful weekend ahead.
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