[Kayn] Visual Bug Whenever Darkin Kayn Uses Umbral Trespass

Darkin Kayn Visual Bug [9/06/2017]
GPU: GeForce GTX 1070 CPU: Intel(R) Core(TM) i5-6600K CPU @ 3.50GHz Memory: 16 GB RAM (15.95 GB RAM usable) Current resolution: 2560 x 1440, 59Hz
I have only encountered this with Darkin Kayn, but using Umbral Trespass causes a visual bug where a ? mark will appear surrounded by a green border. This does not seem to happen with the base form, interestingly. Steps to reproduce: 1. Select Kayn. 2. Select Darkin Form. 3. Use Umbral Trespass on an enemy champion (or target dummy).
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