Resolved
Reported for: Toolset Forms 1.9.2.1
Resolved in: Toolset CRED 1.9.3
With CRED 1.9.2/1.9.2.1 and Types 2.2.17/2.2.18 installed, CRED Ajax Forms do not submit at all.
This issue will be fixed in the next release of Toolset CRED.
In meanwhile we advise you to temporary disable Ajax setting in CRED Form settings.