404 error for D365Shell.woff2 and seguisb.woff2 fonts

We have these two errors in the console:

GET https://<somedomainhere>/_imgs/D365Shell.woff2 net::ERR_ABORTED 404 (Not Found)
GET https://<somedomainhere>/_imgs/seguisb.woff2 net::ERR_ABORTED 404 (Not Found)

Both fonts are in the correct folder, and the .woff fonts that are in the same folder have no issues.

Might be related to this post: https://powerusers.microsoft.com/t5/PowerApps-Ideas/Erase-the-404-Not-found-errors-after-a-user-signed-in-dynamics/idi-p/223287

Please advice.