Roborock S8 Pro Ultra not emptying dirty water

I’ve had the Roborock S8 Pro Ultra for a couple of years and it’s always worked really well. Lately, though, I’ve noticed a couple of issues:

The dirty water tank doesn’t seem to be filling up with much dirty water anymore The mopping function isn’t working as effectively my floors just don’t look as clean

We’ve tried giving the pipes a good clean, but that hasn’t solved the problem. Has anyone else experienced this?

I’m planning to contact Roborock Australia support does anyone have experience with them? Are they good to deal with?

Thanks in advance! 😊