Current consumption on WDT Reload

Hi, I'm working on nRF52832 at SDK ver15.3.

My problem is Current consumption increasing (82uA -> 550uA) when WDT Reloading in sleep mode.

I set WDT configuration "Pause in SLEEP and HALT" mode from errata 88 and some issues.

But, not improving that.

However, I confirmed the wondering event.

I see only this current consumption increasing in release compiled hex file,

and I cannot see in debug compiled hex file.

Is there anyone who can understand this ?

Best Regards,