TRC20 USDT completely ignored when importing via address

When importing a Tron blockchain address that has many USDT transactions on it, that are visible on the blockchain for the address just fine, they are completely ignored by Koinly. It seems TRX itself is imported but the many thousands of dollars wort of USDT are just ignored making tax calcs completely wrong.

I have many hundred of these, surely I am not the first person to use Koinly + USDT on the tron blockchain?

What have you tried to fix this so far?

Reimporting the blockchain address does not work.

Can someone take a look please. It is quite a fundamental problem if stable coins do not work on your systems.