Any chance you can share a small sample of the data, both before and after translation?
Thanks for your comment.This led me to investigate the shape geometry a bit closer.I have just noticed.all the Shape_Area fields are wrong (not just the problem features, but all of them).If I run a buffer in ArcPro with a buffer dist of 1cm the correct area gets calculated and all features display correctly.
Im not doing anything particularly tricky in the workspace.Merging attributes on parcel ID then a few standard transformers like clipper, sorter, aggregator.The last thing I do is join the features back to the original Parcel data based on ID which is unnecessary but I was hoping to eliminate any bad geometries that might have been created.
In the FME data inspector the data looks as expected.(Image 1).Image 2shows the same data viewed in Pro.
Data in FME Data Inspector
Data in ArcPro
It kinda sounds like you're expecting areas to come out but get lines.There's a few things to check: