This is the problem that I was talking about.

Translation language

Sentence

Narrator

This is the issue I was referring to; you should address it immediately.

I frequently encounter this problem in my daily work.

Is this the problem you were mentioning earlier?

If this problem wasn't resolved, it could cause significant issues.

This is the matter I previously discussed.

This is the thing I was talking about.

This is the trouble I meant.

Discussing or mentioning something.

The issue or difficulty.