Issue with Proxy in Latenode (Works in External Tests, but Not in Latenode)

Hi, I am trying to set up an HTTP node in Latenode to make posts on Reddit through an authenticated proxy.

I tested the proxy using curl and Axios from my machine, and it works perfectly. However, when I try to use it in Latenode, the connection fails with the following error:

Get “https://www.google.com”: proxyconnect tcp: dial tcp [PROXY_IP]:3128: connect: connection timed out

To verify that the proxy is working, I ran:
curl -x http://proxyuser:password@[PROXY_IP]:3128 -I https://www.google.com

And I received an HTTP 200 response, confirming that the proxy is operational.

Does Latenode have any restrictions on proxies, or do I need to configure something else in the HTTP request?

I would appreciate any guidance.