Issue: Attempting to work through the tutorial using the tutorial files. However, whenever I reach try to merge replicates using the 'replicate consistency' function or use table filtering to extract Arthropods. I am met with the following message: "Unexpected error: <class 'AttributeError'>.

Issue: Attempting to work through the tutorial using the tutorial files. However, whenever I reach try to merge replicates using the 'replicate consistency' function or use table filtering to extract Arthropods. I am met with the following message: "Unexpected error: <class 'AttributeError'>.
