Hi all, I have encountered a Klayout FEOL DRC error during the precheck of my design. However, I found no drc violation when doing drc check in klayout on the gds. I have read the FEOL report but I don't understand the meaning of the error. I tried to locate those errors on the gds file, but all 5 errors are pointing to the empty area. Could anyone help me? gds file is here: https://github.com/jhz701/class_d_audio_amplifier/tree/main/gds

(1) If errors point to an empty area then it's most likely that the error has been given in the coordinate system of a subcell while you're looking at the top leve, or vice versa. (2) The klayout DRC deck was recently developed, so if you happen to find that this is a false positive, please raise an issue on the efabless helpdesk or the issue tracker for the precheck system on github (I think it's public?).