i use original ("clean") h5 client and yes before update i reinstalled game and deleted system folder, after update i did quick check
in that case, Delete System & System_Averia_Guard , run FULL CHECK
yes updater doesnt work correctly, i have many files 0kb and even doesnt create l2.exe file in GUARD folder. When i download whole system guard folder i'll get "this locale error" and i definitely would not change my windows language to english.
