diff --git a/spiffworkflow-backend/src/spiffworkflow_backend/routes/process_instances_controller.py b/spiffworkflow-backend/src/spiffworkflow_backend/routes/process_instances_controller.py
index 55c8e63b..5d596020 100644
--- a/spiffworkflow-backend/src/spiffworkflow_backend/routes/process_instances_controller.py
+++ b/spiffworkflow-backend/src/spiffworkflow_backend/routes/process_instances_controller.py
@@ -573,7 +573,7 @@ def process_instance_task_list(
 
     steps_by_id = {step_detail.task_id: step_detail for step_detail in step_details}
 
-    subprocesses_to_set_to_waiting = []
+    subprocess_state_overrides = {}
     for step_detail in step_details:
         if step_detail.task_id in tasks:
             # task_ids_in_use.append(step_detail.task_id)
@@ -594,20 +594,17 @@ def process_instance_task_list(
                         task_data = {}
                     subprocess_info['tasks'][step_detail.task_id]["data"] = task_data
                     subprocess_info['tasks'][step_detail.task_id]['state'] = Task.task_state_name_to_int(step_detail.task_state)
-                    subprocesses_to_set_to_waiting.append(subprocess_id)
+                    subprocess_state_overrides[subprocess_id] = TaskState.WAITING
 
     for subprocess_info in subprocesses.values():
         for spiff_task_id in subprocess_info['tasks']:
             if spiff_task_id not in steps_by_id:
                 subprocess_info['tasks'][spiff_task_id]['data'] = {}
-                subprocess_info['tasks'][spiff_task_id]['state'] = TaskState.FUTURE
+                subprocess_info['tasks'][spiff_task_id]['state'] = subprocess_state_overrides.get(spiff_task_id, TaskState.FUTURE)
     for spiff_task_id in tasks:
         if spiff_task_id not in steps_by_id:
             tasks[spiff_task_id]['data'] = {}
-            if spiff_task_id in subprocesses_to_set_to_waiting:
-                tasks[spiff_task_id]['state'] = TaskState.WAITING
-            else:
-                tasks[spiff_task_id]['state'] = TaskState.FUTURE
+            tasks[spiff_task_id]['state'] = subprocess_state_overrides.get(spiff_task_id, TaskState.FUTURE)
 
     process_instance.bpmn_json = json.dumps(bpmn_json)
 
diff --git a/spiffworkflow-backend/src/spiffworkflow_backend/services/process_instance_processor.py b/spiffworkflow-backend/src/spiffworkflow_backend/services/process_instance_processor.py
index 95093123..db6ae2ec 100644
--- a/spiffworkflow-backend/src/spiffworkflow_backend/services/process_instance_processor.py
+++ b/spiffworkflow-backend/src/spiffworkflow_backend/services/process_instance_processor.py
@@ -1527,10 +1527,12 @@ class ProcessInstanceProcessor:
             "Service Task",
             "Default Start Event",
             "Exclusive Gateway",
+            "Call Activity",
             # "End Join",
             "End Event",
             "Default Throwing Event",
-            "Subprocess"
+            "Subprocess",
+            "Transactional Subprocess",
         }
 
         # making a dictionary to ensure we are not shadowing variables in the other methods
diff --git a/spiffworkflow-frontend/src/routes/ProcessInstanceShow.tsx b/spiffworkflow-frontend/src/routes/ProcessInstanceShow.tsx
index 5b8bb285..10be9ed5 100644
--- a/spiffworkflow-frontend/src/routes/ProcessInstanceShow.tsx
+++ b/spiffworkflow-frontend/src/routes/ProcessInstanceShow.tsx
@@ -242,9 +242,17 @@ export default function ProcessInstanceShow({ variant }: OwnProps) {
 
   const spiffStepLink = (label: any, distance: number) => {
     const processIdentifier = searchParams.get('process_identifier');
-    let queryParams = '';
+    const callActivityTaskId = searchParams.get('call_activity_task_id');
+    let queryParamArray = [];
     if (processIdentifier) {
-      queryParams = `?process_identifier=${processIdentifier}`;
+      queryParamArray.push(`process_identifier=${processIdentifier}`);
+    }
+    if (callActivityTaskId) {
+      queryParamArray.push(`call_activity_task_id=${callActivityTaskId}`);
+    }
+    let queryParams = '';
+    if (queryParamArray.length > 0){
+      queryParams = `?${queryParamArray.join('&')}`;
     }
     return (
       <Link