Hi Devendra. Thank you for your answer. Yes, I have already tried renaming the parameters using prefix like DS_ etc. and the filter actually worked. However, the main concern here is the CAD assembly file has a master sketch like this.

And the parameters from this sketch are read-only in Discovery. In short, this main assembly file has parameter which refers to a master sketch and the master sketch refers to another part file. Sorry I cannot share the file since this is client's CAD and confidential. Maybe you have another suggestion on this?