strange .fontconfig directories creating themselves under numbered directories in my home

Hello,

I have a problem I couldn’t find the origin.

Occasionnaly, I have strange .fontconfig directories creating themselves under 2 digit numbered directories in my home.

For example, I have : /home/username/84/.fontconfig/

with these file in the .fontconfig dir: 7ef2298fde41cc6eeb7af42e48b7d293-le64.cache-3 cabbd14511b9e8a55e92af97fb3a0461-le64.cache-3

I often have to do this: cd /home/username && rm -rf 79 80 81 82 83 84 85 86 87 91

Does anyone knows why this happens?

Thanks a lot!