@Autumn Shultz‚ I would recommend checking what is being populated
automatically on timesheets via Setup > Timesheets & Hours >
Preferences. There is a section for Pre-Populate Timesheets with an
option for "Tasks & Issues that have Planned Dates in timesheet's date
range" that you'll want to make sure is not checked. This should remove
issues from timesheets and instead just keep both project and tasks.