Help! An entire row on my Apple Wireless Keyboard doesn't work.

Almost an entire row on my Apple Wireless Keyboard stopped functioning, seemingly completely randomly. Specifically the keys TAB - Q - W - E - R - T - Y - U - I - O.

- I did not spill any liquid.

- I restarted my keyboard and my computer, including removing the battery.

- I removed a key cap and even when I pressed just the plastic part inside, the key didn't work. It also doesn't seem like there is any debris inside.

- I paired the keyboard with another computer and the problem persisted.

Your help would be much appreciated!