Bulk associate categories doesn't work [VM 4.0.20]

[hazael]

"Bulk associate" function stopped working for me. Replace, add, remove doesn't work.
If it wasn't for the RoCSVI component, I would die from completing this list for each product separately 

PS.
I've written about it before. If you run the [Bulk associate categories] button, the menu from the old template will appear in the new vmadmin template.