Rush Matching Issues across Different Continents

Hey guys! Hope you enjoy your game.

I've met a problem these days when playing RUSH mode with my friends.

It always tells us that it fails to find an opponent or teammate.

Two in our teams (XSS/PS5) are in China mainland. One is in Australia (PS5) and the last one (PS5) is in Ireland. 

We can find opponents and teammates if we play alone.

It cannot be fixed even we use the same console booster.

Is it relevant to the new matching rules?

We can play normally before the matching rules are updated.

We will appreciate if someone can help us solve this problems.