diff --git a/Core/Resgrid.Services/DepartmentSettingsService.cs b/Core/Resgrid.Services/DepartmentSettingsService.cs
index 8c6a27c7..194521dd 100644
--- a/Core/Resgrid.Services/DepartmentSettingsService.cs
+++ b/Core/Resgrid.Services/DepartmentSettingsService.cs
@@ -19,6 +19,7 @@ public class DepartmentSettingsService : IDepartmentSettingsService
 		private static string PaddleCustomerCacheKey = "DSetPaddleCus_{0}";
 		private static string BigBoardCenterGps = "DSetBBCenterGps_{0}";
 		private static string StaffingSupressInfo = "DSetStaffingSupress_{0}";
+		private static string ModuleSettingsCacheKey = "DSetModuleSettings_{0}";
 		private static string TtsLanguageCacheKey = "DSetTtsLanguage_{0}";
 		private static string PersonnelOnUnitSetUnitStatusCacheKey = "DSetPersonnelOnUnitSetUnitStatus_{0}";
 		private static string ModernNotificationsCacheKey = "DSetModernNotifications_{0}";
@@ -46,6 +47,11 @@ public DepartmentSettingsService(IDepartmentSettingsRepository departmentSetting
 
 			if (savedSetting == null)
 			{
+				// First-time write still needs to clear any cache populated by the fallback
+				// "new DepartmentModuleSettings()" in GetDepartmentModuleSettingsAsync (cached 365 days).
+				if (type == DepartmentSettingTypes.ModuleSettings)
+					await _cacheProvider.RemoveAsync(string.Format(ModuleSettingsCacheKey, departmentId));
+
 				DepartmentSetting newSetting = new DepartmentSetting();
 				newSetting.DepartmentId = departmentId;
 				newSetting.Setting = setting;
@@ -67,6 +73,9 @@ public DepartmentSettingsService(IDepartmentSettingsRepository departmentSetting
 					case DepartmentSettingTypes.StaffingSuppressStaffingLevels:
 						await _cacheProvider.RemoveAsync(string.Format(StaffingSupressInfo, departmentId));
 						break;
+					case DepartmentSettingTypes.ModuleSettings:
+						await _cacheProvider.RemoveAsync(string.Format(ModuleSettingsCacheKey, departmentId));
+						break;
 					case DepartmentSettingTypes.TtsLanguage:
 						await _cacheProvider.RemoveAsync(string.Format(TtsLanguageCacheKey, departmentId));
 						break;
@@ -759,7 +768,7 @@ async Task<DepartmentModuleSettings> getSetting()
 
 			if (!bypassCache && Config.SystemBehaviorConfig.CacheEnabled)
 			{
-				var cachedValue = await _cacheProvider.RetrieveAsync<DepartmentModuleSettings>(string.Format(StaffingSupressInfo, departmentId),
+				var cachedValue = await _cacheProvider.RetrieveAsync<DepartmentModuleSettings>(string.Format(ModuleSettingsCacheKey, departmentId),
 					getSetting, ThatsNotLongThisIsLongCacheLength);
 
 				return cachedValue;
diff --git a/Workers/Resgrid.Workers.Console/Dockerfile b/Workers/Resgrid.Workers.Console/Dockerfile
index aa79b303..135065d1 100644
--- a/Workers/Resgrid.Workers.Console/Dockerfile
+++ b/Workers/Resgrid.Workers.Console/Dockerfile
@@ -2,8 +2,12 @@
 #See https://aka.ms/containerfastmode to understand how Visual Studio uses this Dockerfile to build your images for faster debugging.
 ARG BUILD_VERSION=3.5.0
 
-#FROM mcr.microsoft.com/dotnet/runtime:9.0.3-noble-amd64 AS base
-FROM dhi.io/dotnet:9.0.16-debian13@sha256:4797903e46b475875f4a402aa6f42a1dcc78cfe67d217f9f5f49e358b60d47a3 AS base
+## Workers.Console transitively requires the ASP.NET Core shared framework
+## (OpenIddict + the shared Services/Providers projects FrameworkReference
+## Microsoft.AspNetCore.App), so the runtime-only "dhi.io/dotnet" image fails at
+## launch with "No frameworks were found". Use the aspnetcore base instead.
+#FROM mcr.microsoft.com/dotnet/aspnet:9.0.3-noble-amd64 AS base
+FROM dhi.io/aspnetcore:9.0.16-debian13@sha256:961647e80202ce33fc06472dda4e7ae2d2bc56d819aee6742602f70047b13dc7 AS base
 ARG BUILD_VERSION
 WORKDIR /app