Has the way the vertex creator processes data changed in v2022?

I've used vertex creator in FME 2022.2 and it works fine for me. How many points are we taking about? In my case I had around 8 million easting/northing (British National Grid Proj) coordinates which I then converted to vertices before grouping them and creating polyline features.

Just another thought: Have you turned off Feature Caching and checked that the disk drive with the temp directory where your .ffs files go to, while you are running the workspace, has enough space on it. It could be you need to set the temp directory to a larger drive, see here: https://community.safe.com/s/article/fme-temp-environment-variable

@jimsco​ As @osmanbeg1980​ mentions - it's unlikely to be VertexCreator that causes a memory issue. Check what other transformations are being used in the workflow that might group data.