diff --git a/invokeai/backend/model_management/model_cache.py b/invokeai/backend/model_management/model_cache.py
index 64f95699c9..08aa2f3044 100644
--- a/invokeai/backend/model_management/model_cache.py
+++ b/invokeai/backend/model_management/model_cache.py
@@ -289,19 +289,26 @@ class ModelCache(object):
             cache = self.cache
             key = self.key
             model = self.model
+            
+            # NOTE that the model has to have the to() method in order for this
+            # code to move it into GPU!
             if self.gpu_load and hasattr(model,'to'):
                 cache.loaded_models.add(key)
                 cache.locked_models[key] += 1
+                
                 if cache.lazy_offloading:
                    cache._offload_unlocked_models()
+                   
                 if  model.device != cache.execution_device:
                     cache.logger.debug(f'Moving {key} into {cache.execution_device}')
                     with VRAMUsage() as mem:
                         model.to(cache.execution_device)  # move into GPU
                     cache.logger.debug(f'GPU VRAM used for load: {(mem.vram_used/GIG):.2f} GB')
                     cache.model_sizes[key] = mem.vram_used   # more accurate size
+                    
                 cache.logger.debug(f'Locking {key} in {cache.execution_device}')                
                 cache._print_cuda_stats()
+                
             else:
                 # in the event that the caller wants the model in RAM, we
                 # move it into CPU if it is in GPU and not locked
diff --git a/invokeai/backend/model_management/model_manager.py b/invokeai/backend/model_management/model_manager.py
index 0905d5bf40..f4093ab116 100644
--- a/invokeai/backend/model_management/model_manager.py
+++ b/invokeai/backend/model_management/model_manager.py
@@ -1054,10 +1054,13 @@ class ModelManager(object):
         full_name = f"{model_name}/{model_type.name}"
         if full_name in self.config:
             return full_name
-        if model_name in self.config:
+        # special case - if diffusers requested, then allow name without type appended
+        if model_type==SDModelType.diffusers \
+           and model_name in self.config \
+           and self.config[model_name].format=='diffusers':
             return model_name
         raise InvalidModelError(
-            f'Neither "{model_name}" nor "{full_name}" are known model names. Please check your models.yaml file'
+            f'"{full_name}" is not a known model name. Please check your models.yaml file'
         )