Bug #103143 cant view any mariadb connections..
Submitted: 29 Mar 2021 12:23 Modified: 29 Mar 2021 13:01
Reporter: Allen Ford Email Updates:
Status: Unsupported Impact on me:
None 
Category:MySQL Workbench Severity:S3 (Non-critical)
Version:8.0.23 OS:Windows (Microsoft Windows 10 Home)
Assigned to: CPU Architecture:Any
Tags: WBBugReporter

[29 Mar 2021 12:23] Allen Ford
Description:

08:38:52 [WRN][SqlEditorSchemaTree]: Error fetching index information for 'cyford_cpanel'.'employees_skills': MySQL_ResultSet::getString: invalid value of 'columnIndex'
08:38:56 [WRN][SqlEditorSchemaTree]: Error fetching index information for 'cyford_cpanel'.'customer_account_leads_usa': MySQL_ResultSet::getString: invalid value of 'columnIndex'
08:39:04 [ERR][SQL Editor Form]: Error Code: 1317. Query execution was interrupted
11:05:36 [ERR][SQL Editor Form]: Error Code: 1064. You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'cyford_cpanel.customer_account_leads_usa' at line 1
11:05:44 [ERR][SQL Editor Form]: Error Code: 1317. Query execution was interrupted
11:06:02 [ERR][      WBContext]: WBContext: exception in flush idle task: Exception: 
11:06:02 [ERR][      WBContext]: WBContext: exception in flush idle task: Exception: 
11:06:02 [ERR][      WBContext]: WBContext: exception in flush idle task: Exception: 
11:06:02 [ERR][      WBContext]: WBContext: exception in flush idle task: Exception: 
11:06:03 [ERR][      WBContext]: WBContext: exception in flush idle task: Exception: 
12:17:44 [ERR][wb_admin_control.py:server_polling_thread:581]: Error in monitoring thread: Traceback (most recent call last):
  File "C:\Program Files\MySQL\MySQL Workbench 8.0 CE\modules\wb_admin_control.py", line 573, in server_polling_thread
    result = self.poll_connection.executeQuery("SHOW GLOBAL STATUS")
  File "C:\Program Files\MySQL\MySQL Workbench 8.0 CE\workbench\db_utils.py", line 364, in executeQuery
    raise QueryError("Error executing '%s'\n%s"%(query, error), code, error)
workbench.db_utils.QueryError: Error executing 'SHOW GLOBAL STATUS'
Lost connection to MySQL server during query.
SQL Error: 2013

08:15:08 [ERR][wb_admin_utils.py:page_activated:333]: Exception activating the page - DbMySQLQuery.resultFieldStringValueByName(): MySQL_ResultSet::isNull: invalid value of 'columnLabel'Exception activating the page - DbMySQLQuery.resultFieldStringValueByName(): MySQL_ResultSet::isNull: invalid value of 'columnLabel'

How to repeat:
workbench no longer allowing me to view any mariadb connections..  

go to connections,   an press refresh

worked before upgrading to latest version
[29 Mar 2021 13:01] MySQL Verification Team
Please note that server MariaDB isn't supported by MySQL Workbench. Thanks.