Hi, I have a full-custom design, which I want to connect to a layout synthesized with Silicon Ensemble, so I would like to check the connections using LVS. I have created an extracted view and a symbol view from a the layout for this latter part. The symbol view is used in the schematics, while the extracted view is necessary for the file si.env: simViewList = '("extracted" "auLvs" "schematic") lvsLayoutViewList = '("auLvs" "extracted" "schematic") lvsSchematicViewList = '("extracted" "auLvs" "schematic") My problem is that this solution seemed to work. However it was not true and if there is a bad connection between the full-custom design and the layout synthesized with Silicon Ensemble, LVS says nothing about it. I have tried to repeat the same process writing "symbol" in simViewList, lvsLayoutViewList and lvsSchematicViewList instead of "extracted", but I cannot run LVS because appears the following message: (_route_interface symbol) in route_interface library has been changed since it was last extracted. As you can imagine, I've saved and created this symbol several times, but the problem is still the same. Many thanks Moisés