I'm a new Ultra user. I was on the may 30th firmware release 5.2.718554. I experienced issues with using Chromecast and Mixcloud as mentioned a few times in the forum. As suggested, I contacted Wiim support via the feedback option in the app. Somewhat impressively, within an hour, they had pushed version 5.2.710354 to my device - which fixed the issue. As this is an earlier version does this mean it will soon get updated back to where I started or am I now fixed on the earlier one?