Hi, I recently updates the igraph to 0.8.4, for testing whether I encounter a new bug, and obviously the official release 0.8.4 didn’t include the right fix mentioned in https://igraph.discourse.group/t/help-error-again-assertion-no-100-failed-in-igraph-0-8-3/487/11?u=d9y1kk
So the testing code in that post still failed with “invalid attributes”, and I saw cattributes.c still wrongly free the new attribute value.
Edit: I use the source code for visual studio