Undesired "BOM" characters on JGR output

[acescos]

Hi Markus!
I am using JGR 1.8-7 download and installed from R repositories.
I have "aesthetic" problems on the output, that include "�ÿþ" characters

The problem is the same as is shown in this link:
https://stackoverflow.com/questions/63769352/how-to-remove-bom-ÿþ-from-jgr-and-deducer-output-in-jgr-console
This problem is not present always because on another laptop the strange characters are not presents on the output.
Best,
Alejandro