fix control on non-active tab

CHANGELOG.md

@@ -19,7 +19,7 @@ Thanks to @BinaryQuantumSoul for his hard work on this project!
 Given huge number of changes with *+3443/-3342 commits diff over the past year, a completely different backend/engine and a change of focus,  
 it is time to give credit to original [author](https://github.com/auTOMATIC1111),  and move on!  
 
-## Update for 2024-04-28
+## Update for 2024-04-30
 
 - **Features**:
   - **ModernUI** preview of the new [ModernUI](https://github.com/BinaryQuantumSoul/sdnext-modernui)  

modules/control/run.py

@@ -158,6 +158,7 @@ def control_run(units: List[unit.Unit] = [], inputs: List[Image.Image] = [], ini
         shared.log.warning('Model not loaded')
         return [], '', '', 'Error: model not loaded'
 
+    unit_type = unit_type.strip().lower() if unit_type is not None else ''
     t0 = time.time()
     num_units = 0
     for u in units: