How to properly debug why my Quartz.NET cron schedule is not trigger in .Net Core app

I am using Quartz Jobs to make background data processing in my ASP Net Core project. I found that when i am using valid Cron Expressions they not triggered and there are no errors or warnings in logs / console.

My jobs configuration looks like:

 private void ConfigureRegularJobs(IServiceCollection services)
 {
     services.AddQuartz(quartz =>
     {
         quartz.UseMicrosoftDependencyInjectionJobFactory();

         quartz.AddJob<SpectraIndexerJob>(job => job.WithIdentity(nameof(SpectraIndexerJob)));
         //todo: umv: move in config (every 3 hours)
         quartz.AddTrigger(trigger => trigger.ForJob(nameof(SpectraIndexerJob))                  .WithCronSchedule(_config.DefaultJobsSettings.DefaultSpectraIndexerSchedule));

              
         // other jobs ....

       });

       services.AddQuartzHostedService(options => options.WaitForJobsToComplete = true);
}

My cron expressions are valid, they were generated using online generator: https://www.freeformatter.com/cron-expression-generator-quartz.html

I.e. for upper mentioned job configuration i pass "0/30 0 0 ? * * *" as CRON-expression.

How to find reason of why my Jobs are not trigger?

Upd:

1. My Logs configuration is:

"Logging": {
    "LogLevel": {
      "Default": "Debug",
      "Microsoft": "Debug",
      "Microsoft.Hosting.Lifetime": "Debug",
      "Quartz.Core.QuartzScheduler":  "Debug" 
    }
  },

2. If i replace WithCronSchedule with

.WithSimpleSchedule(x => x.WithIntervalInMinutes(1)
                          .RepeatForever()));

everything works fine.

3. My logs from app including quartz logs:

dbug: Microsoft.AspNetCore.Hosting.Diagnostics[3]
      Hosting starting
dbug: Quartz.Simpl.TaskSchedulingThreadPool[0]
      TaskSchedulingThreadPool configured with max concurrency of 10 and TaskScheduler ThreadPoolTaskScheduler.
info: Quartz.Core.SchedulerSignalerImpl[0]
      Initialized Scheduler Signaller of type: Quartz.Core.SchedulerSignalerImpl
info: Quartz.Core.QuartzScheduler[0]
      Quartz Scheduler created
info: Quartz.Core.QuartzScheduler[0]
      JobFactory set to: Quartz.Simpl.MicrosoftDependencyInjectionJobFactory
info: Quartz.Simpl.RAMJobStore[0]
      RAMJobStore initialized.
info: Quartz.Core.QuartzScheduler[0]
      Scheduler meta-data: Quartz Scheduler (v3.4.0.0) 'Wissance.MossbauerLab.Watcher.ead4e265-d489-455e-b654-4ca7d9abc034' with instanceId 'ead4e265-d489-455e-b654-4ca7d9abc034'
  Scheduler class: 'Quartz.Core.QuartzScheduler' - running locally.
  NOT STARTED.
  Currently in standby mode.
  Number of jobs executed: 0
  Using thread pool 'Quartz.Simpl.DefaultThreadPool' - with 10 threads.
  Using job-store 'Quartz.Simpl.RAMJobStore' - which does not support persistence. and is not clustered.

info: Quartz.Impl.StdSchedulerFactory[0]
      Quartz scheduler 'Wissance.MossbauerLab.Watcher.ead4e265-d489-455e-b654-4ca7d9abc034' initialized
info: Quartz.Impl.StdSchedulerFactory[0]
      Quartz scheduler version: 3.4.0.0
dbug: Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServer[2]
      Failed to locate the development https certificate at '(null)'.
warn: Microsoft.AspNetCore.Server.Kestrel[0]
      Overriding address(es) 'https://localhost:5001/, http://localhost:5000/'. Binding to endpoints defined in UseKestrel() instead.
dbug: Microsoft.AspNetCore.Hosting.Diagnostics[4]
      Hosting started
dbug: Microsoft.AspNetCore.Hosting.Diagnostics[0]
      Loaded hosting startup assembly Wissance.MossbauerLab.Watcher.Web
Hosting environment: Development
Content root path: C:\Users\michael\Projects\Wissance\LabWatcher\Wissance.MossbauerLab.Watcher\Wissance.MossbauerLab.Watcher
Now listening on: http://localhost:7890
Application started. Press Ctrl+C to shut down.
info: Quartz.Core.QuartzScheduler[0]
      Scheduler Wissance.MossbauerLab.Watcher.ead4e265-d489-455e-b654-4ca7d9abc034_$_ead4e265-d489-455e-b654-4ca7d9abc034 started.
dbug: Quartz.Core.QuartzSchedulerThread[0]
      Batch acquisition of 0 triggers