A second operation started on this context before a previous operation completed upgrading EF Core 2 to EF Core 3.1.3

I just tried upgrading from EF Core 2 to EF Core 3. Every call I have is an Async Task<> method, but I'm still getting the A "Second operation started, see https://go.microsoft.com/fwlink/?linkid=2097913" error. I know it says to await every method, but doesn't that defeat the purpose of making async calls? Also, why does it work in EF Core 2 and not EF Core 3? If I have to use a diff db context, how can this be done with dependency injection in .net core 3?

// Async method that we will await later.
var softwareServiceCodeTask = _pricingCalcRepo.IsSoftwareServiceCodeAsync(jobsId)

pricingCalcInfo = await GetJobDetailsAsync(jobsId);

        private async Task<PricingCalculationInfo> GetJobDetailsAsync(int jobsId)
        {
            return await (
                   from jobs in _contextProposal.PRP_Jobs
                   join service in _contextProposal.PRP_Service on jobs.ServiceId equals service.ServiceId
                   join proposal in _contextProposal.PRP_Proposal on service.ProposalId equals proposal.ProposalId
                   where jobs.JobsId == jobsId
                   select new PricingCalculationInfo
                   {
                       ContractYear = proposal.ContractYear,
                       BidCrewSize = jobs.BidCrewSize,
                       ServiceCode = service.ServiceCode,
                       Territory = jobs.Territory,
                       TotalPONIs = jobs.TotalPONIs,
                       WeekWorkHours = _appSettings.Value.WeekWorkHours,
                       NonProductiveHoursPerWeek = _appSettings.Value.NonProductiveHoursPerWeek
                   }).FirstAsync();
        }