"Not surprising for me that you make me disappointed."

Translation: Tidak mengejutkan untuk saya bahwa kalian membuat saya kecewa.

[Brian260733]

Tidak mengejutkan untukku bahwa kamu membuat saya kecewa. This is marked wrong, but it looks right to me. What am I missing?

[menickmati]

You used "aku" and "saya" in the same sentence.

[AliZyl18]

Why is kamu not accepted instead of kalian?

[Langaholic]

Why is "untukku" not accepted?

[Harvey384140]

why is Tidak mengejutkan bagi saya bahwa anda membuat saya kecewa incorrect?

[Pix54]

I answered the suggested solution, except with Bukan instead of Tidak. It was marked wrong. My thinking was that “Not surprising” is short for “It is not surprising”, and therefore bukan would be appropriate as it is modifying a noun. Am I way off here?

[Rick392366]

'tidak' is used here to negate the verb 'mengejutkan'.

kejut (adjective) = shock.
mengejutkan (me-kan verb) = to shock, to surprise.