Collecting information from host1.example.com...
 
...

 - Gathering SHOW ENGINE PERFORMANCE_SCHEMA STATUS...
 - Gathering SHOW FULL PROCESSLIST...
 - Gathering SHOW OPEN TABLES...

An error occurred during data collection. Partial output deleted.
Traceback (most recent call last):
  File "<string>", line 1, in <module>
RuntimeError: ScriptingError: debug.collect_diagnostics:
Traceback (most recent call last):
  File "init.py", line 97, in collect_diagnostics
  File "/usr/lib/mysqlsh/plugins/debug/collect_diagnostics.py", line 454, in do_collect_diagnostics
    analyze_topology_data(zf, prefix, topology_data)
  File "/usr/lib/mysqlsh/plugins/debug/collect_diagnostics.py", line 359, in analyze_topology_data
    dump_diff(
  File "/usr/lib/mysqlsh/plugins/debug/collect_diagnostics.py", line 344, in dump_diff
    line.append(value.ljust(column_widths[1+i]))
AttributeError: 'NoneType' object has no attribute 'ljust'