Comment 1 for bug 1662293

Hi Raul, it has been a while but I think we have a solution for you issue:

You're likely facing the same issue that was reported in bug #1697681 before and now in bug #1709729 again.

Could you check if you have the environment variable "FONTCONFIG_FILE" set? It likely points to a non-existent or invalid "fonts.conf" file.
Delete that environment variable and the issue should be solved!