diff --git a/mitogen/master.py b/mitogen/master.py
index fd0c4201..c5eee826 100644
--- a/mitogen/master.py
+++ b/mitogen/master.py
@@ -559,6 +559,9 @@ class SysModulesMethod(FinderMethod):
         """
         Find `fullname` using its :data:`__file__` attribute.
         """
+        # see if collections are being loaded in sys.path here
+        if 'synchronize' in fullname:
+            raise ValueError(sys.path)
         module = sys.modules.get(fullname)
         if not isinstance(module, types.ModuleType):
             LOG.debug('%r: sys.modules[%r] absent or not a regular module',
diff --git a/mitogen/service.py b/mitogen/service.py
index 82372bcc..249a8781 100644
--- a/mitogen/service.py
+++ b/mitogen/service.py
@@ -774,8 +774,6 @@ class PushFileService(Service):
                 # not sure if it matters but we could prepend to sys.path instead if we need to
                 sys.path.append(extra_path)
                 self._extra_sys_paths.add(extra_path)
-            # see if this is an issue with python2 loading packages
-            sys.path.append("/Users/runner/.ansible/collections/ansible_collections/ansible/posix")
 
     @expose(policy=AllowParents())
     @arg_spec({