Hello @pieter, just back to this: If you are using tables in a pop-up don’t add the init table workflow in page load.
Create a condition that runs when the pop-up turns visible:
Important: Set just once, because we only want to run this workflow one time, after it loads, when the pop-up is open the next times the table is already inited, otherwise will throw an error.
Add Table workflow can only be run 1 time per table.
Refresh Table workflow can be run unlimited times.
If I understand correctly your issue, this should fix it.