Workaround for me:
- Create file named mysqldump.cmd with contents:
@echo off
"c:\Program Files\MySQL\MySQL Workbench 8.0 CE\mysqldump.exe" %* --column-statistics=0
(replace path to mysqldump.exe if necessary)
- Open MySQL Workbench and go to Edit > Preferences > Administration, change path to mysqldump tool and point it to mysqldump.cmd