You could check ec.log. You will find 2 strings in there when client and server files are mismatched.
[04:31:22.057] <!> local ver: 300000be8c605a298f4ed5a1295721a4ef
[04:31:22.559] <!> server ver: 300000be8c605a298f4ed5a1295721a4ef
Green is the element data version. Orange is the tasks data version. Blue is gshop, purple is gshop1 and if you have 1.5.5 red is gshop2.
Hope it helps!

