create a new database with magentoerpconnect module and dependent modules.
Create one new Magento referential in Magento-Connection>Core Settings>Magento Instances
try to restart the server with --update=all and KABOOM! your menus are gone...
So it seems it's not even related to what is inside our ir_model data as they aren't any new synchro ir_model_data at this stage.
How to reproduce:
create a new database with magentoerpconnect module and dependent modules. Connection> Core Settings>Magento Instances
Create one new Magento referential in Magento-
try to restart the server with --update=all and KABOOM! your menus are gone...
So it seems it's not even related to what is inside our ir_model data as they aren't any new synchro ir_model_data at this stage.