diff --git a/src/ubkg_api/common_routes/common_neo4j_logic.py b/src/ubkg_api/common_routes/common_neo4j_logic.py
index 501bf05..e623d21 100644
--- a/src/ubkg_api/common_routes/common_neo4j_logic.py
+++ b/src/ubkg_api/common_routes/common_neo4j_logic.py
@@ -15,6 +15,9 @@
 from typing import List
 import os
 
+# Apr 2024
+from pathlib import Path
+
 import neo4j
 
 from models.codes_codes_obj import CodesCodesObj
@@ -53,12 +56,18 @@ def loadquerystring(filename: str) -> str:
 
     :param filename: filename, without path.
 
-    Assumes that the file is in the cypher directory.
+    APRIL 2024
+    Assumes that the file is in the cypher subdirectory, which is at the same level as the script path.
+    When ubkg-api endpoints are called as passthrough from hs-ontology api, the script path is in hs-ontology-api.
+
+
     """
 
-    fpath = os.path.dirname(os.getcwd())
-    fpath = os.path.join(fpath, 'ubkg_api/cypher', filename)
+    #fpath = os.path.dirname(os.getcwd())
+    #fpath = os.path.join(fpath, 'ubkg_api/cypher', filename)
 
+    fpath = Path(__file__).resolve().parent.parent
+    fpath = os.path.join(fpath,'cypher',filename)
     f = open(fpath, "r")
     query = f.read()
     f.close()
@@ -311,8 +320,7 @@ def concepts_expand_get_logic(neo4j_instance, query_concept_id=None, sab=None, r
     # Set timeout for query based on value in app.cfg.
     query = neo4j.Query(text=querytxt, timeout=neo4j_instance.timeout)
 
-    return get_graph(neo4j_instance, query=query)
-
+    return get_graph(neo4j_instance, query=querytxt)
 
 def concepts_shortestpath_get_logic(neo4j_instance, origin_concept_id=None, terminus_concept_id=None,
                                     sab=None, rel=None) \
diff --git a/src/ubkg_api/common_routes/concepts/concepts_controller.py b/src/ubkg_api/common_routes/concepts/concepts_controller.py
index e63ae68..48d34b0 100644
--- a/src/ubkg_api/common_routes/concepts/concepts_controller.py
+++ b/src/ubkg_api/common_routes/concepts/concepts_controller.py
@@ -136,17 +136,18 @@ def concepts_paths_expand_get(concept_id):
     if err != 'ok':
         return make_response(err, 400)
 
+    # APR 2024 - Check range after setting defaults.
+    # Set default mininum.
+    mindepth = set_default_minimum(param_value=mindepth, default=1)
+    # Set default maximum.
+    maxdepth = str(int(mindepth) + 2)
+
     # Validate that mindepth is not greater than maxdepth.
     err = validate_parameter_range_order(min_name='mindepth', min_value=mindepth, max_name='maxdepth',
                                          max_value=maxdepth)
     if err != 'ok':
         return make_response(err, 400)
 
-    # Set default mininum.
-    mindepth = set_default_minimum(param_value=mindepth, default=1)
-    # Set default maximum.
-    maxdepth = str(int(mindepth) + 2)
-
     # Check that the non-default skip is non-negative.
     skip = request.args.get('skip')
     err = validate_parameter_is_nonnegative(param_name='skip', param_value=skip)
diff --git a/src/ubkg_api/requirements.txt b/src/ubkg_api/requirements.txt
index 35952de..afd1a72 100644
--- a/src/ubkg_api/requirements.txt
+++ b/src/ubkg_api/requirements.txt
@@ -1,3 +1,4 @@
+
 python_dateutil >= 2.6.0
 setuptools >= 21.0.0
 Flask == 2.1.3