I recently got the new e1 and e2 test kits. I tested a pill with e1 and got a weaker than normal color change, but although weak it did turn purple. When I did the test with e2 it turned purple/black initially but after about 30 seconds it turned a murky brown almost black. Has anyone ever seen such a reaction? The pill tested was a green smiley, the ones with the "V" shaped mouth.