On nFR52840, what are the risks if the connection between VDD and VDDH is missing in normal power mode?

Hello,

we are developing a PCB with a nRF52840 in normal power mode. I know that VDD and VDDH have to be shorted in the normal power mode, but due to a layout error we have this connection missing on our current prototype boards. I already searched the forum regarding the potential consequences, and I found this entry:

https://devzone.nordicsemi.com/f/nordic-q-a/44278/nrf52840-normally-supplied-via-vddh---can-it-be-supplied-just-via-vdd-for-swd-programming-without-connecting-vdd-and-vddh-together

This says "It is just not recommended to leave it (the VDDH pin) floating over time, which is why the PS tells you to short them".

So the chip will not be damaged, if you only do it for a short time. But I'm wondering what will happen over a longer period of time? Will there be any damage or performance degradation, or what other bad things could happen? We need to decide if we can still get any useful results out of the tests, or if it would be better to wait for boards with the layout error fixed.

Best regards,

Frank