Daikin split unit question

Hi folks,
I’m new to this forum and looking for some help regarding my Daikin Indoor unit Aircondition.

Today I removed the indoor unit and noticed that the thin copper pipe leading from the unit is twisted. (I attached pictures)
Is this normal?
Thanks malcolm

Not normal. Does it work?

Yes it does work and cools too. The only problem I have with it is that on cooling and heating mode I keep getting a continuous hissing gas sound. Could it be this is causing the sound?