I have received a dataset projected to Lambert Conformal Conic though it appears to be a custom projection. The layer properties:
Projected Coordinate System: Lambert_Conformal_Conic
Linear Unit: Meter
Geographic Coordinate System: GCS_unnamed ellipse
Prime Meridian: Paris
Angular Unit: Degree
This is causing me issues when trying to integrate other datasets in WGS84 and reprojecting.
Edit: here is the processing error in ArcGIS 10.4:
And here is the output if I proceed with the projection (data should overlay):
Is there a solution to this other than trying to find out the original source for the dataset?