Would there be a difference in using the 'older' SharePoint ClientContext/CSOM based API against a site in SharePoint Online versus one that is a part of a Team?

I have a bit of code that works just fine when talking to a general SPO site.

using (var cc = new AuthenticationManager().GetACSAppOnlyContext(instance.url, instance.apiKey, instance.apiSecret))
{    
    Web web = cc.Web;
    var spTimezone = web.RegionalSettings.TimeZone;

    List eventsList = web.Lists.GetByTitle(instance.calendarTitle);
    CamlQuery query = CamlQuery.CreateAllItemsQuery(); 
    var list = web.Lists;

    ListItemCollection eventsItems = eventsList.GetItems(query);
    cc.Load(eventsItems);
    cc.ExecuteQuery();

    Logger.Info("Found " + eventsItems.Count + " items in " + instance.name);
}

But, if I run this against a site I am working on now, I get no results. The API knows if I spell the Calendar Title wrong, but if it is right, I still get zero results. There are at least 3 items in this calendar.

I also can not seem to be able to see a list of all lists in the site, etc.

Is this due to a difference in this particular site? Why would I not be able to get any results, when it works fine on all of my other, non-Teams based sites?

Would there be a difference in using the 'older' SharePoint ClientContext/CSOM based API against a site in SharePoint Online versus one that is a part of a Team?

I have a bit of code that works just fine when talking to a general SPO site.

using (var cc = new AuthenticationManager().GetACSAppOnlyContext(instance.url, instance.apiKey, instance.apiSecret))
{    
    Web web = cc.Web;
    var spTimezone = web.RegionalSettings.TimeZone;

    List eventsList = web.Lists.GetByTitle(instance.calendarTitle);
    CamlQuery query = CamlQuery.CreateAllItemsQuery(); 
    var list = web.Lists;

    ListItemCollection eventsItems = eventsList.GetItems(query);
    cc.Load(eventsItems);
    cc.ExecuteQuery();

    Logger.Info("Found " + eventsItems.Count + " items in " + instance.name);
}

But, if I run this against a site I am working on now, I get zero results. If I run against several sites I developed this code against (not tied to a Team) it works as expected and returns me a collection of list items.

I feel that my auth is working, as if I spell CalendarTitle wrong, I get an exception that List does not exist at URL.

I also can not seem to be able to see a list of all lists in the site, etc.

Is this due to a difference in this particular site? Why would I not be able to get any results, when it works fine on all of my other, non-Teams based sites?

Would there be a difference in using the 'older' SharePoint ClientContext/CSOM based API against a site in SharePoint Online versus one that is a part of a Team?

I have a bit of code that works just fine when talking to a general SPO site.

 Web web = cc.Web;
 var spTimezone = web.RegionalSettings.TimeZone;

 List eventsList = web.Lists.GetByTitle(instance.calendarTitle);
 CamlQuery query = CamlQuery.CreateAllItemsQuery(); 

But, if I run this against a site I am working on now, I get no results. The API knows if I spell the Calendar Title wrong, but if it is right, I still get zero results. There are at least 3 items in this calendar.

I also can not seem to be able to see a list of all lists in the site, etc.

Is this due to a difference in this particular site? Why would I not be able to get any results, when it works fine on all of my other, non-Teams based sites?

Would there be a difference in using the 'older' SharePoint ClientContext/CSOM based API against a site in SharePoint Online versus one that is a part of a Team?

I have a bit of code that works just fine when talking to a general SPO site.

using (var cc = new AuthenticationManager().GetACSAppOnlyContext(instance.url, instance.apiKey, instance.apiSecret))
{    
    Web web = cc.Web;
    var spTimezone = web.RegionalSettings.TimeZone;

    List eventsList = web.Lists.GetByTitle(instance.calendarTitle);
    CamlQuery query = CamlQuery.CreateAllItemsQuery(); 
    var list = web.Lists;

    ListItemCollection eventsItems = eventsList.GetItems(query);
    cc.Load(eventsItems);
    cc.ExecuteQuery();

    Logger.Info("Found " + eventsItems.Count + " items in " + instance.name);
}

But, if I run this against a site I am working on now, I get no results. The API knows if I spell the Calendar Title wrong, but if it is right, I still get zero results. There are at least 3 items in this calendar.

I also can not seem to be able to see a list of all lists in the site, etc.

Is this due to a difference in this particular site? Why would I not be able to get any results, when it works fine on all of my other, non-Teams based sites?