I like to understand what this issue is.
The full warning I get is:
WARNING (XSTRM-298): The stream layer-datatype '108:0' pair at row number '1' in the object map file '..../tsmc65gp_object.map' is also defined in the layer map file. Remove this duplicate entry either from the layer map file or object map file to avoid the StreamOut StreamIn round-trip issue.
I didn't noticed any issue on streaming out & in.
if you not use the layer or object which is mapped to 108:0 in your layut , then ofcourse you wont see any problem/difference.
Please check what is mapped there. What layer in the layer map file and what object in the object map file? If you have
duplicate datanumbers there you loose either the layer information or the object information.
The shapes should still be there, but it's possible that they are on a wrong type now.
Thanks for your reply.
The layer/object is the prBoundary.
I tried a stream out/in and I don't see any issue, the boundary is still there and recognized correctly.
Both the layer & object map files are TSMC property, so I assume I only need to ignore this warning.