We are having an Invalid HTTP response code received in an existing Unreal project

We have tested a private 3DTile dataset and it works on a new UE project and in your sample project, but for some reason it won’t in our existing project. Here’s what we get:

invalid HTTP response code received. URL: https://<example.com>/private.json, HTTP code: 0, content length: 0, actual payload size: 0
2021-09-10 03:26:51.806 22623-22653/com.test.local D/UE4: [2021.09.09-21.56.51:806][ 27]LogHttp: Warning: 0x6f1af08040: request failed, libcurl error: 35 (Error)
2021-09-10 03:26:51.807 22623-22653/com.test.local D/UE4: [2021.09.09-21.56.51:807][ 27]LogHttp: Warning: 0x6f1af08040: libcurl info message cache 0 (TLSv1.2 (OUT), TLS Unknown, Certificate Status (22):slight_smile:
2021-09-10 03:26:51.807 22623-22653/com.test.local D/UE4: [2021.09.09-21.56.51:807][ 27]LogHttp: Warning: 0x6f1af08040: libcurl info message cache 1 (TLSv1.2 (OUT), TLS handshake, Client hello (1):slight_smile:
2021-09-10 03:26:51.807 22623-22653/com.test.local D/UE4: [2021.09.09-21.56.51:807][ 27]LogHttp: Warning: 0x6f1af08040: libcurl info message cache 2 (TLSv1.2 (IN), TLS Unknown, Unknown (21):slight_smile:
2021-09-10 03:26:51.807 22623-22653/com.test.local D/UE4: [2021.09.09-21.56.51:807][ 27]LogHttp: Warning: 0x6f1af08040: libcurl info message cache 3 (TLSv1.2 (IN), TLS alert, Server hello (2):slight_smile:
2021-09-10 03:26:51.807 22623-22653/com.test.local D/UE4: [2021.09.09-21.56.51:807][ 27]LogHttp: Warning: 0x6f1af08040: libcurl info message cache 4 (error:14077410:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert handshake failure)
2021-09-10 03:26:51.821 22623-22653/com.test.local D/UE4: [2021.09.09-21.56.51:821][ 27]LogCesium: Error: [2021-09-10 03:26:51.821] [error] [Tileset.cpp:536] Unhandled error for tileset https://<example.com>/private.json: Request failed.

Does this look familiar and what would you suggest we do?

Hi @carlrealvr,

I’m really not sure what’s going on here. Are you using the same engine version for all projects? Have you changed any firewall settings or configured a proxy that may be affecting only some of your projects?

You may want to try migrating assets from your existing project to a new project, if possible.