Error during usage of extra caterories

When an extra category is selected during an event creation the following error appears “Argument « category » has invalid value $category.” and the event cannot created. In addition the extra category appear correcly in the list. Mobilizon 5.2.3. Any idea ?

Hello,

Which instance are you using?

I don’t face any issue with the latest version (demoed in https://tests.keskonfai.fr/)

My instance is agenda.lagraine34.org. could share an example of the extra category is config.esx. Perhaps I’m doing wrong.. Thanx in advance for your support.