No trusted GUI certificate after upgrade to 2.0.9.107_canary_2024-09-11

Hi. I am having some trouble with a no trusted GUI certificate and hope that someone can help…

I have a private CA that generates SSL certificates for Duplicati GUI. After upgrade a random installation to 2.0.9.107_canary_2024-09-11 (from 2.0.8.1_beta_2024-05-07) browsers starts showing invalid certificate warning (net::ERR_CERT_AUTHORITY_INVALID). The certificate chain listed in browsers is incomplete (does not include root and intermediate CA’s). The server is running Ubuntu Server 24.04.

I have others linux servers (Ubuntu Server 22.04) running Duplicati (2.0.8.1_beta_2024-05-07) with certificates generated by the same CA and everything works like expected.

What am i doing wrong? How can i debug such cases?
Thanks.