workspace_listing task fails with stacktrace below

19:27:39 INFO [databricks.labs.ucx.workspace_access.listing] {MainThread} Recursive WorkspaceFS listing finished at 2023-10-27 19:27:39.888857. Total time taken for workspace listing: 0:00:30.155382
19:27:39 ERROR [databricks.labs.ucx] {MainThread} Task crashed. Execute databricks workspace export /Users/person@org/.ucx/logs/assessment/run-#######/workspace_listing.log locally to troubleshoot with more details. 'object_type'
19:27:39 DEBUG [databricks] {MainThread} Task crash details
Traceback (most recent call last):
File "/local_disk0/.ephemeral_nfs/cluster_libraries/python/lib/python3.10/site-packages/databricks/labs/ucx/framework/tasks.py", line 149, in trigger
current_task.fn(cfg)
File "/local_disk0/.ephemeral_nfs/cluster_libraries/python/lib/python3.10/site-packages/databricks/labs/ucx/runtime.py", line 292, in workspace_listing
crawler.snapshot()
File "/local_disk0/.ephemeral_nfs/cluster_libraries/python/lib/python3.10/site-packages/databricks/labs/ucx/workspace_access/generic.py", line 260, in snapshot
return self._snapshot(self._try_fetch, self._crawl)
File "/local_disk0/.ephemeral_nfs/cluster_libraries/python/lib/python3.10/site-packages/databricks/labs/ucx/framework/crawlers.py", line 229, in _snapshot
loaded_records = list(loader())
File "/local_disk0/.ephemeral_nfs/cluster_libraries/python/lib/python3.10/site-packages/databricks/labs/ucx/workspace_access/generic.py", line 253, in _crawl
object_type=raw["object_type"],
KeyError: 'object_type'