Editing ESRI GeoDatabases
Editing of ESRI GeoDatabases was not previously supported by the spatial editing extension.
If you are editing a database with Weave that has been enabled as a GeoDatabase then it is likely that the GeoDatabase metadata managed by ArcGis is now out of sync and this can result in the inability to create new records with ArcGis.
There is a hotfix available for the 2.5.27, 2.5.28 and 2.5.29 releases of Weave that resolves the issue (currently only for SQL Server) and should be applied as soon as possible, http://downloads.cohga.com/weave/ .
The hotfix will stop the issue for occurring in the future but will not repair any feature datasets that are already out of sync, and additionally the hotfix will now make it more likely that Weave will no longer be able to create new records (since Weave now follows the same process as ArcGis when creating records).
To repair any feature datasets that have been edited with Weave they will need to be copied to a new feature dataset, the old feature dataset deleted, and the new feature dataset renamed to replace the old broken feature dataset (as this will reset the metadata for the feature dataset).
Update:
Postgis/Postgres and Oracle are not supported for editing an ESRI GeoDatabase at all, and in fact GeoDatabase enabling the database may make them unavailable to Weave as a spatial engine completely.