The current mirror Pcell adds a ptap as welltie and adds a pwell irrespective of the device type. this leads to those LVS errors. Thread in Slack Conversation

@Tianxiang Li @Chetanya Goyal Can you please review

@Subham Pal thanks for pointing this out, do you want to submit a PR fixing this?

I have rectified the code and it worked for my design. I can submit a PR.