When the E36300A series power supply was released, it had a similar problem and it was hardware related and Keysight fixed all the problems nicely.
I would think that this is an isolated problem on your EDU36311A. It is hard to believe that such simple problem would not be detected by the Keysight testing team.
And E36100A series was retired within 6 months of release and E36100B series was silently released to fix hardware deficiencies.
Keysight sometimes releases hardware that is not up to their reputation. They are not magical, it's only normal. Even old, mythical HP had revisions, and field corrections and such. And devices were much simpler..
There are numerous problems reported. 34465A had problems with AC measurements. 34470 has weird autocal problem. MSOX3000A/2000 had firmware corruption problems...
Like everybody else, they have to rush products to market to keep up with the competition. And they have same problems as everybody in software development, fast time to market, and "ship, we'll fix it later" mentality is something you cannot avoid.
But they usually admit and fix their mistakes. Sometimes not, if it is something small and limited scope.