Having difficulty saving array of integers as table reference list

Hey folks! Thanks in advance for reading. I'm sending an array of integers from custom frontend (React Native) to Xano backend, and saving as a table reference list.

One POST has many TECHNOLOGIES.

It all works correctly in debugger:

But it does not work correctly in practice:

Xano appears to be expecting a single integer.

To make matters weird, when there's just one integer in the technologies_id array sent from frontend, then it works as intended:

Any ideas? Just want to save an object that refers to another table as expected 😭

Thanks!