这只是一个枝节问题。

This is only a minor problem.

一切枝节问题留待以后解决。

Leave minor issues to be resolved at a later date.

老在枝节问题上作文章

always making a big thing about side issues

别去注意那些枝枝节节。

Don't get sidetracked by complications.

枝枝节节地考虑，不解决问题。

Thinking about this and that doesn't solve the issue at hand.

横生枝节

cause unexpected trouble