Job running with old instance of code

[hello2pankaj]

I am using Quartz.Extensions.Hostin 3.8.1 scheduling package in .netcore6 web api application. App deployment environment is azure appservice (running on 2 instances). I have below quartz config for 4 jobs.

public static void ConfigureQuartzJobs(this WebApplicationBuilder builder)
{
	var services = builder.Services;
	services.AddQuartzHostedService(opt => opt.WaitForJobsToComplete = true);
	services.AddQuartz(q =>
	{
		q.SchedulerId = "SomeId";
		q.SchedulerName = "SomeName";
		q.UsePersistentStore(s =>
				{
				  s.UseProperties = true;
				  s.UseClustering();
				  s.UseSqlServer(connectionString);
				  s.UseNewtonsoftJsonSerializer();
				});
				q.AddJob<job1>(j => j.StoreDurably().WithIdentity(jobkey1))
				 .AddTrigger(trigger => trigger
						   .ForJob(jobkey1)
						   .WithIdentity("tr1")
						   .WithSimpleSchedule(schedule => schedule.WithIntervalInMinutes(5).RepeatForever()));
						   

				q.AddJob<job2>(j => j.StoreDurably().WithIdentity(jobkey2))
				 .AddTrigger(trigger => trigger
						   .ForJob(jobkey3)
						   .WithIdentity("tr2")
						   .WithSimpleSchedule(schedule => schedule.WithIntervalInMinutes(5).RepeatForever()));
						   

				q.AddJob<job3>(j => j.StoreDurably().WithIdentity(jobkey3))
				 .AddTrigger(trigger => trigger
						   .ForJob(jobkey3)
						   .WithIdentity("tr3")
						   .WithSimpleSchedule(schedule => schedule.WithIntervalInMinutes(5).RepeatForever()));
						   

				q.AddJob<job4>(j => j.StoreDurably().WithIdentity(jobkey4))
				 .AddTrigger(trigger => trigger
						   .ForJob(jobkey4)
						   .WithIdentity("tr4")
						   .WithSimpleSchedule(schedule => schedule.WithIntervalInMinutes(60).RepeatForever()));
	});
}

Let say job1 calls instance of LogicClass which has method "Process(bool CalledByJob)". It is called by Job1 class something like below.

[DisallowConcurrentExecution]
public class Job1 : IJob
{
	public async Task Execute(IJobExecutionContext context)
	{
		try
		{
		   logicClass.Process(True);
		}
		catch (Exception ex)
		{
			await Console.Out.WriteLineAsync($"{context.FireTimeUtc}, {ex}. FireInstanceId={context.FireInstanceId}");
		}
	}
}

LogicClass's process method has code to log saying "Processing start. CalledByJob={calledbyJob}"

So when the job starts, i can see the log happening which is expected.

However , when i was done with testing, i removed the part "CalledByJob={calledbyJob}" from the log. The log now only said "Processing start".

The issue i am seeing is that after deployment of the code (i.e without CalledByJob log), some job run is showing it (i.e. "calledByJob=true") in the log and some not. I tried restarting the azure app service and Purging the azure front door cache. no luck though.

Can anyone please guide me why this is happening and what's the solution.