Missing phase band after SnaphuExport operation

Hello everyone, I have executed the graph attached (at the input there is an interferogram), the operator SnaphuExport correctly exports the band of the coherence, but the phase of the interferogram is not exported, and therefore it is not possible to perform the processing with snaphu. This problem occurs with SNAP 8 updated to the latest version with OS Ubuntu 18.
Has anyone had the same problem and can suggest a solution?

Is the phase contained in the other output (Write)?

Yes, the phase is present as the output of the “Write” operator, but it is not in the format usable by snaphu.

Found something related: