I had a project a little while back for which I wanted to use wood filament. After running a few test parts, I decided that I needed to increase the nozzle diameter because the wood filament kept clogging my off-the-shelf 0.4mm nozzle. After installing my larger diameter nozzle I ran a few more test parts and noticed that my corners weren’t closing properly. After going through many hours testing to find out what the cause was, I realized that my retraction was off. I had to decrease it significantly to get everything to work right again.

Moral of the story, most parameters are specific to the exact configuration that you have on the printer. If you change anything, you should check to make sure that you temperature, retraction settings, speeds, etc. are all appropropriate for the new configuration, or adjust them.