#94 Remove VNB and VPB from the liberty files Issue opened by msaligane Expected Behavior Remove VNB and VPB from the liberty files will fix this issue. Buffer/delay/inverter footprints are recognized. Actual Behavior innovus/15.21.000 can only detect buffers and inverters when there is an exact match between LEF and lib files (IE if vpb/vnb are deleted from the .lib it works) innovus/18.10.000 can detect buffers and inverters if vpb/vnb are defined in lower case or deleted.. but fails to detect them if they are defined as upper case. Innovus uses its "footprintless" flow except if we provide a footprint file (unusual). And if there are mismatches between .libs and .lefs then innovus fails to recognize delay/buffer/inverter cells. google/skywater-pdk