Hi Gatling Team,
There seems to be an SSL regression in 2.2.0-SNAPSHOT.
The same simulation with the same certificates runs in 2.1.7, but we receive a General SSLEngine problem in the 2.2.0-SNAPSHOT.
I suppose you want a reproducer?
Many Thanks
Aidy
Absolutely 
Gatling users,
Stephane has fixed the issue and I've tested on the updated snapshot.
https://github.com/gatling/gatling/issues/2908
To update with SBT
$ sbt update
Aidy