If the threads on the nut don't engage the threads on the strainer body(what you're calling the "funnels) so that it can be tightened, you had a real botch artist who used mis-matched parts doing the installation & you'll never get a decent seal between the flange on the strainer body & the sink.

You may be looking at getting & installing new strainer body assemblies, as per guest's YouTube video, above.

Then call the Better Business Bureau & report the botch artists.