when we create a site template via "Save site as template" after a short while (less than 1hour i think) the solution for this template in the solution gallery of the site collection is disappearing (also in the Windows Explorer view of the solution gallery).
The Feature "Web Template feature of exported web template" is still there and activated, the template can still be selected when creating a new subsite.
The site can be saved as a template with the same name with no error, but then there are two custom site templates with the same name when we create a new subsite.
Does anyone know this problem?
The content database of this site has been migrated from a Sharepoint 2013 environment.
Thanks in advance