Severe glitch - Warmog CD not going off

Hello all!

I was playing league as Taliyah in unranked thankfully, and Warmogs for some reason was giving zero extra CDR. To reiterate the information, I was using Taliyah, I had boots of Ionia, and I was sporting the +5% cap cd reduction mastery on top of the warmog's item and only had 15% total CD.

To give some extra info, I did have over 3000 health as well so the glitch probably does not lie there.

Thanks for reading! I hope for a quick fix that way I can properly carry out my Taliyah build.