That's quite another matter.
The problem is still at a manageable stage.
Another problem has arisen.
Apart from that, there is still another consideration.
There was another problem.
Another difficulty arises here.
We were confronted with yet another problem.
Apart from that, there is still another consideration.
I foresee that there will be problems.
Apart from that, there is still another consideration.
That's another question.
Apart from that, there is still another consideration.
That becomes tangible.
A complication has arisen.
The problems are multiplying.
Let's look at the problem from a different point of view.