Error posting webhook data to https endpoint

[auzeb....@rallyteam.com]

Hey,

I have set up some webhooks to post to our API which is https based but did see any data incoming. On checking the webhooks history I saw the following errors:

For security reasons, Eventbrite HTTPS webhooks can only be sent to servers that support the TLSv1 protocol.Try the same action with 'HTTP' instead of 'HTTPS'

The API uses https with TLS version 1.2:

Protocol
TLS 1.2
Key Exchange
ECDHE_RSA
Cipher Suite
AES_256_CBC with HMAC-SHA1

Is version 1.2 not supported?