I recently opened wootility and did some updates. I believe it was on version 5.0.2 before (version from ~1 year ago) and now its on 5.2.4. During this, the firmware version also got updated, I don't remember what it was previously, but it is now on 2.12.5.
I normally have the keyboard plugged into a powered USB Hub and it used to work fine, but now with the same devices plugged in, it causes issues (or causes issues with other devices if the keyboard was plugged in first). I also couldn't complete the firmware update without plugging it into a main USB slot, when before I had been able to complete updates fine through the USB Hub.