Same problem as with 3.27.68. I'm just gonna copy paste from there:
"On my Void Pro Wireless the charging status is bugged in this version (also whichever version was before this one, i think 3.26.95). If the headset is plugged in and charging when the iCUE starts up, then iCUE will show the battery status at 95% (regardless of what actual percentage it may be) and stops charging (even the charging LED on the headset turns off). The only way to fix it, is to unplug it and plug it back in. Basically, the headset cannot be plugged in before iCUE starts or it will not charge and show incorrect battery percentage. The last version that I tested that works fine is 3.20.80 (have not tested any versions between 3.20.80 and 3.26.95 because they all had other issues right from the start)"
The only difference is that instead of 95%, it now says 100%. Back to 3.20.80.