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LineOnLineOverlayer after upgrade from FME 2020 to FME 2024 output there is a count difference in outputs. The data used for both version is same, In FME 2020 the tolerance parameter was none while there is no such option in 2024, so used 0 as tolerance value. Still showing count difference.

I don’t immediately have an answer, but are you able to share a sample of the data where you’re seeing this change in behavior?

Could be to do with how FME handles rounding errors or errors associated with computations with 64-bit arithmetic (https://docs.safe.com/fme/html/FME-Form-Documentation/FME-Transformers/!FME_Geometry/Tolerance.htm).  Which version gives a higher count?  What happens if you round the coordinates using CoordinateRounder before the LineOnLineOverlayer? 

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