Fixed: Issue with custom formats when profile was saved with non existing formats. Also you now don't have to refresh your browser for them to appear / disappear.

src/NzbDrone.Api/Profiles/ProfileModule.cs

@@ -1,5 +1,8 @@
 using System.Collections.Generic;
+using System.Linq;
 using FluentValidation;
+using NzbDrone.Common.Extensions;
+using NzbDrone.Core.CustomFormats;
 using NzbDrone.Core.Profiles;
 using NzbDrone.Core.Validation;
 
@@ -8,14 +11,26 @@ namespace NzbDrone.Api.Profiles
     public class ProfileModule : NzbDroneRestModule<ProfileResource>
     {
         private readonly IProfileService _profileService;
+        private readonly ICustomFormatService _formatService;
 
-        public ProfileModule(IProfileService profileService)
+        public ProfileModule(IProfileService profileService, ICustomFormatService formatService)
         {
             _profileService = profileService;
+            _formatService = formatService;
             SharedValidator.RuleFor(c => c.Name).NotEmpty();
             SharedValidator.RuleFor(c => c.Cutoff).NotNull();
             SharedValidator.RuleFor(c => c.Items).MustHaveAllowedQuality();
             SharedValidator.RuleFor(c => c.Language).ValidLanguage();
+            SharedValidator.RuleFor(c => c.FormatItems).Must(items =>
+            {
+                var all = _formatService.All().Select(f => f.Id).ToList();
+                all.Add(CustomFormat.None.Id);
+                var ids = items.Select(i => i.Id);
+
+                return all.Except(ids).Empty();
+            }).WithMessage("All Custom Formats and no extra ones need to be present inside your Profile! Try refreshing your browser.");
+            SharedValidator.RuleFor(c => c.FormatCutoff)
+                .Must(c => _formatService.All().Select(f => f.Id).Contains(c.Id) || c.Id == CustomFormat.None.Id).WithMessage("The Custom Format Cutoff must be a valid Custom Format! Try refreshing your browser.");
 
             GetResourceAll = GetAll;
             GetResourceById = GetById;

src/NzbDrone.Core/Datastore/Converters/CustomFormatIntConverter.cs

@@ -48,6 +48,12 @@ namespace NzbDrone.Core.Datastore.Converters
             }
 
             var quality = (CustomFormat) clrValue;
+
+            if (CustomFormatService.AllCustomFormats?.ContainsKey(quality.Id) == false)
+            {
+                //throw new Exception("Attempted to save an unknown custom format! Make sure you do not have stale custom formats lying around!");
+            }
+            
             return quality.Id;
         }
 

src/UI/Settings/CustomFormats/CustomFormatCollection.js

@@ -1,8 +1,28 @@
 var Backbone = require('backbone');
 var IndexerModel = require('./CustomFormatModel');
 
+var vent = require('vent');
+
 module.exports = Backbone.Collection.extend({
     model : IndexerModel,
-    url   : window.NzbDrone.ApiRoot + '/customformat'
+    url   : window.NzbDrone.ApiRoot + '/customformat',
+    
+    sync : function(method, model, options) {
+        vent.trigger(vent.Events.CustomFormatsChanged, {method : method});
+
+        Backbone.Collection.prototype.sync.apply(this, arguments);
+    },
+
+    add : function(model, options) {
+        vent.trigger(vent.Events.CustomFormatsChanged, {options : options});
+
+        Backbone.Collection.prototype.add.apply(this, arguments);
+    },
+
+    remove : function(model, options) {
+        vent.trigger(vent.Events.CustomFormatsChanged, {options : options});
+
+        Backbone.Collection.prototype.remove.apply(this, arguments);
+    }
 });
 

src/UI/Settings/Profile/ProfileLayout.js

@@ -5,6 +5,8 @@ var DelayProfileLayout = require('./Delay/DelayProfileLayout');
 var DelayProfileCollection = require('./Delay/DelayProfileCollection');
 var LanguageCollection = require('./Language/LanguageCollection');
 
+var vent = require('vent');
+
 module.exports = Marionette.Layout.extend({
     template : 'Settings/Profile/ProfileLayoutTemplate',
 
@@ -17,6 +19,10 @@ module.exports = Marionette.Layout.extend({
         this.settings = options.settings;
         ProfileCollection.fetch();
 
+        vent.on(vent.Events.CustomFormatsChanged, function(options) {
+            ProfileCollection.fetch();
+        });
+
         this.delayProfileCollection = new DelayProfileCollection();
         this.delayProfileCollection.fetch();
     },

src/UI/vent.js

@@ -7,7 +7,8 @@ vent.Events = {
 		MovieDeleted       : 'movie:deleted',
 		CommandComplete    : 'command:complete',
 		ServerUpdated      : 'server:updated',
-		EpisodeFileDeleted : 'episodefile:deleted'
+		EpisodeFileDeleted : 'episodefile:deleted',
+		CustomFormatsChanged : 'customformat:changed'
 };
 
 vent.Commands = {