You can read more about the Event Editor anonymous locks issue that we patched via this recent GeoNet post.
We recommend that all users that are at the 10.6.1 release and are utilizing conflict prevention install this patch. This patch is only for Roads and Highways 10.6.1 Server and there is no need to update ArcMap, Event Editor, Roadway Reporter, or any other ArcGIS Enterprise components such as ArcGIS Server, Portal for ArcGIS, or the Web Adaptors.
If you wish to test this patch and then uninstall it, note that you can uninstall Roads and Highways for Server 10.6.1 to remove this patch, and then reinstall Roads and Highways for Server 10.6.1. There is no specific uninstaller for this patch.
Installing this patch will require an ArcGIS Server restart, and will occur automatically when the file is installed, so please plan accordingly. Please also ask all Event Editor users to clear their browser cache and cookies after this update to ensure there are no initial login errors after the ArcGIS Server restart.
Thank you again for your patience, and please leave any comments you have about the patch below.