I think in their videos for Rene v2 and a lot of the Press they mentioned they tested it with various PSUs. But i agree it is a bit of an annoyance. I think it’s one of the disadvantage of Eurorack. There are a lot designs and designers with different specs. There are always going to be some teething depending what module brand you use with what PSU for power , or for touch plates in this instance or what CV standard they use to interact with other modules.
Out of interest. What power bus board are you using?
Another good example of this is with LZX modular , a video synth company. Their modules ideally worked with Malekko power supplies. Otherwise the video would ripple/distort a bit. Now they make their own PSUs and are specifically for video , so even better again. Now they are doing standalone designs that work either racked or externally to surpass the PSU issue. Its just its an open standard and with open standards there are pros and cons.