diff --git a/unilabos/devices/liquid_handling/prcxi/prcxi.py b/unilabos/devices/liquid_handling/prcxi/prcxi.py
index 446d03c..d80efdd 100644
--- a/unilabos/devices/liquid_handling/prcxi/prcxi.py
+++ b/unilabos/devices/liquid_handling/prcxi/prcxi.py
@@ -1652,10 +1652,10 @@ class PRCXI9300Api:
         start = False
         while not success:
             status = self.step_state_list()
-            if len(status) == 1:
-                start = True
             if status is None:
                 break
+            if len(status) == 1:
+                start = True
             if len(status) == 0:
                 break
             if status[-1]["State"] == 2 and start:
diff --git a/unilabos/test/experiments/prcxi_9320_no_res.json b/unilabos/test/experiments/prcxi_9320_no_res.json
index ae9a62d..b6b3829 100644
--- a/unilabos/test/experiments/prcxi_9320_no_res.json
+++ b/unilabos/test/experiments/prcxi_9320_no_res.json
@@ -22,7 +22,7 @@
         "host": "10.20.30.184",
         "port": 9999,
         "debug": false,
-        "setup": true,
+        "setup": false,
         "is_9320": true,
         "timeout": 10,
         "matrix_id": "5de524d0-3f95-406c-86dd-f83626ebc7cb",
@@ -221,7 +221,7 @@
         "type": "PRCXI9300PlateAdapterSite",
         "size_x": 127.5,
         "size_y": 86,
-        "size_z": 97,
+        "size_z": 94,
         "rotation": {
           "x": 0,
           "y": 0,
diff --git a/unilabos/test/experiments/prcxi_9320_with_res_test.json b/unilabos/test/experiments/prcxi_9320_with_res_test.json
index e7b18d9..831cecc 100644
--- a/unilabos/test/experiments/prcxi_9320_with_res_test.json
+++ b/unilabos/test/experiments/prcxi_9320_with_res_test.json
@@ -221,7 +221,7 @@
         "type": "PRCXI9300PlateAdapterSite",
         "size_x": 127.5,
         "size_y": 86,
-        "size_z": 97,
+        "size_z": 94,
         "rotation": {
           "x": 0,
           "y": 0,