I had the same issue with many games, after updating to 17.0. I had also updated some homebrew apps to ensure everything was compatible. SaltyNX required an additional step after updating - Deleting the .elf file in SaltySD/plugins fixed the...
sorry, beein trying to find this file that's been right in front of me for a month now, only to find broken links, and google to prove that it's completely worthless.