diff --git a/backend/api/Services/AccessRoleService.cs b/backend/api/Services/AccessRoleService.cs
index c2c2c266e..ecc8ea487 100644
--- a/backend/api/Services/AccessRoleService.cs
+++ b/backend/api/Services/AccessRoleService.cs
@@ -29,7 +29,7 @@ private IQueryable<AccessRole> GetAccessRoles(bool readOnly = false)
         public async Task<List<string>> GetAllowedInstallationCodes()
         {
             if (httpContextAccessor.HttpContext == null)
-                return await context.Installations.Select((i) => i.InstallationCode.ToUpperInvariant()).ToListAsync();
+                return await context.Installations.AsNoTracking().Select((i) => i.InstallationCode.ToUpperInvariant()).ToListAsync();
 
             var roles = httpContextAccessor.HttpContext.GetRequestedRoleNames();
 
diff --git a/backend/api/Services/MissionRunService.cs b/backend/api/Services/MissionRunService.cs
index 1649e8aa0..bd258b881 100644
--- a/backend/api/Services/MissionRunService.cs
+++ b/backend/api/Services/MissionRunService.cs
@@ -578,7 +578,7 @@ public async Task<MissionRun> UpdateMissionRunStatusByIsarMissionId(string isarM
 
         public async Task<MissionRun> UpdateMissionRunProperty(string missionRunId, string propertyName, object? value)
         {
-            var missionRun = await ReadById(missionRunId);
+            var missionRun = await ReadById(missionRunId, readOnly: false);
             if (missionRun is null)
             {
                 string errorMessage = $"Mission with ID {missionRunId} was not found in the database";