I used to be able to cast local files to my chromecast/google tv just fine through Google Chrome. It would start playing/mirroring my tab for a few seconds, then automatically switch to full screen optimization and play flawlessly on the tv, while my computer would show "Now casting to *name of my Google TV*". It still does this same thing and works fine when casting videos from online, however now whenever I try to cast local files, full screen optimization does not work. It mirrors the video, and once it switches to full screen optimizing, it still says "Now casting to *name of my Google TV*" on my computer, however the tv just shows a plain black screen, with no video or sound.
If i just mirror the tab, it works, however it lags very badly, and makes my computer run slow and work extra hard, which it does not do when full screen optimizing. I have literally tried just about everything possible, from uninstalling and reinstalling chrome, resetting settings on both chrome and my google tv, turning off and back on full screen optimization, changing various settings on both chrome and google tv, using third party applications such as VLC, and more, and absolutely nothing has worked. I haven't been able to find anything regarding this issue online through google or third party forums.
This is extremely frustrating especially since this used to work just fine, and is the main reason I even purchased a google tv. PLEASE help me resolve this major headache.
Thanks for your time!