Kyle, I'm the author of the 5e sheet and I cant replicate the problem you are having. Can you post a screenshot of the sheet thats causing the problems. Specifically i'll need the core stats section, the class section, and the spellbook section. I should be able to see from those screens whether soemthing is configured in the sheet wrongly and get enough to test it myself if. One other point to look out for is if you have previously used another character sheet on this character (including the older playtest "Next" one) or if you have ever entered any attributes manually on the attributes and abilities tab of the journal entry. If so, these older values may be being used in the calculation instead of the ones shown on the sheet (if they have the same name as the fields on the sheet do). An easy way to test this is to have your DM create a fresh new character for you, put in the basic stat and level details, and see whether that works out the correct save DC for your ranger.