diff --git a/mods/auth_rx/init.lua b/mods/auth_rx/init.lua
index e4e9c8e..0de9252 100644
--- a/mods/auth_rx/init.lua
+++ b/mods/auth_rx/init.lua
@@ -24,7 +24,7 @@ local auth_filter = AuthFilter( world_path, "greenlist.mt" )
 local auth_db = AuthDatabase( world_path, "auth.db" )
 local auth_watchdog = AuthWatchdog( )
 local is_50 = minetest.has_feature("object_use_texture_alpha")
-local is_54 = minetest.has_feature("object_use_texture_alpha")
+local is_54 = minetest.has_feature("direct_velocity_on_players")
 
 if is_50 then
 	if minetest.register_on_auth_fail then
@@ -128,15 +128,15 @@ end )
 minetest.register_authentication_handler( {
 	-- translate old auth hooks to new database backend
 	get_auth = function( username )
+		minetest.log( "verbose" , "[auth_rx] get_auth handler access to some resource for " .. username )
 		local rec = auth_db.select_record( username )
 		if rec then
 			local assigned_privs = rec.assigned_privs
 
 			if get_minetest_config( "name" ) == username then
 				-- grant server operator all privileges
-				-- (TODO: implement as function that honors give_to_admin flag)
 				assigned_privs = { }
-				for priv in pairs( core.registered_privileges ) do
+				for priv in pairs( minetest.registered_privileges ) do
 					table.insert( assigned_privs, priv )
 				end
 			end
@@ -145,28 +145,52 @@ minetest.register_authentication_handler( {
 		end
 	end,
 	create_auth = function( username, password )
-		if auth_db.create_record( username, password ) then
-			auth_db.set_assigned_privs( username, get_default_privs( ) )
-			minetest.log( "info", "Created player '" .. username .. "' in authentication database" )
+		minetest.log( "verbose" , "[auth_rx] create_auth handler new user over server for " .. username )
+		local rec = auth_db.create_record( username, password )
+		if rec then
+			local assigned_privs = get_default_privs( )
+
+			if get_minetest_config( "name" ) == username then
+				-- grant server operator all privileges
+				assigned_privs = { }
+				for priv in pairs( minetest.registered_privileges ) do
+					table.insert( assigned_privs, priv )
+				end
+			end
+
+			auth_db.set_assigned_privs( username, assigned_privs )
 		end
 	end,
 	delete_auth = function( username )
-		if auth_db.delete_record( username ) then
-			minetest.log( "info", "Deleted player '" .. username .. "' in authenatication database" )
+		minetest.log( "verbose" , "[auth_rx] delete_auth handler for " .. username )
+		-- server operator's privileges are immutable
+		if get_minetest_config( "name" ) ~= username then
+			local rec =  auth_db.delete_record( username )
+			if rec then
+				minetest.log( "info", "Deleted player '" .. username .. "' in authenatication database" )
+			end
 		end
 	end,
 	set_password = function ( username, password )
-		if auth_db.set_password( username, password ) then
+		minetest.log( "verbose" , "[auth_rx] set_password handler for " .. username )
+		local rec =  auth_db.set_password( username, password )
+		if rec then
 			minetest.log( "info", "Reset password of player '" .. username .. "' in authentication database" )
 		end
 	end,
 	set_privileges = function ( username, privileges )
+		minetest.log( "verbose" , "[auth_rx] set_privileges handler grants for " .. username )
+		local assigned_privs = pack_privileges( privileges )
 		-- server operator's privileges are immutable
-		if get_minetest_config( "name" ) == username then return end
+		if get_minetest_config( "name" ) == username then
+			assigned_privs = { }
+			for priv in pairs( minetest.registered_privileges ) do
+				table.insert( assigned_privs, priv )
+			end
+		end
 
-		if auth_db.set_assigned_privs( username, pack_privileges( privileges ) ) then
+		if auth_db.set_assigned_privs( username, assigned_privs ) then
 			minetest.notify_authentication_modified( username )
-			minetest.log( "info", "Reset privileges of player '" .. username .. "' in authentication database" )
 		end
 	end,
 	record_login = function ( ) end,