exhaust leak

I have a 2019 Encore that sometimes when starting has grey exhaust that smells like oil burning? Doesn’t’ always happen seems to be more frequent in the cold. Took it to the dealership they indicated there wasn’t a problem. Anyone else dealing with this

I found an exhaust leak on the mid pipe before the catalytic converter using the vacuum-in-tailpipe and soapy water method (photo attached). There was no leak in the front exhaust manifold but I couldn't check the rear exhaust manifold. The car also has a ticking noise as I accelerate while...