diff --git a/.python-version b/.python-version
index 1e334568..371cfe35 100644
--- a/.python-version
+++ b/.python-version
@@ -1 +1 @@
-3.11.2
+3.11.1
diff --git a/Pipfile b/Pipfile
index 83e03d58..a8f3eb59 100644
--- a/Pipfile
+++ b/Pipfile
@@ -5,3 +5,10 @@ name = "pypi"
 
 [packages]
 e1839a8 = {path = ".",editable = true}
+
+[dev-packages]
+ipython = "*"
+pytest = "*"
+flaky = "*"
+coverage = "*"
+pytest-cov = "*"
diff --git a/axonius_api_client/api/assets/fields.py b/axonius_api_client/api/assets/fields.py
index 5d7d1b23..cd5952d5 100644
--- a/axonius_api_client/api/assets/fields.py
+++ b/axonius_api_client/api/assets/fields.py
@@ -614,14 +614,15 @@ def split_search(self, value: str, adapter: str = AGG_ADAPTER_NAME) -> Tuple[str
         """
         search = value.strip().lower()
 
-        if ":" in search:
+        # Problem are fields containing ":" from adapters that populate dynamic fields
+        # PBUG: special check for 'custom attributes' coming from esx adapter.
+        if ":" in search and 'custom attributes' not in search:
             adapter_split, field = [x.strip() for x in search.split(":", 1)]
             if not adapter_split:
                 adapter_split = adapter
         else:
             field = search
             adapter_split = adapter
-
         qual_check = re.match(r"adapters_data\.(.*?)\.", field)
         if qual_check and len(qual_check.groups()) == 1:
             adapter_split = qual_check.groups()[0]
@@ -639,7 +640,6 @@ def split_search(self, value: str, adapter: str = AGG_ADAPTER_NAME) -> Tuple[str
 
         if not fields:
             raise ApiError(f"No fields provided in {value!r}, format must be 'adapter:field'")
-
         return adapter_split, fields
 
     def _prettify_schemas(
diff --git a/axonius_api_client/version.py b/axonius_api_client/version.py
index 23e54e23..d725d6fc 100644
--- a/axonius_api_client/version.py
+++ b/axonius_api_client/version.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 """Version information for this package."""
-__version__ = "5.0.5"
+__version__ = "5.0.6"
 VERSION: str = __version__
 """Version of package."""