ocp-index-jump-to-definition is broken

[UnixJunkie]

Hello,

I have ocp-index 1.2.2 and ocaml-4.12.
In an emacs buffer, ocp-index-jump-to-definition
tells me 'No definition found' while the definition
is in the same buffer.

Am I the only one seing this?

If the definition is in another file, same problem.

Regards,
F.