IPsec XAuth PSK with Apple OSX Catalina

Hi,

our VPN is a IPsec XAuth PSK (thanks to MUM talks of Andis Āriņš at MUM Europe in 2018), as client for Apple laptop we are using Shimo (https://www.shimovpn.com/) in Apple OSX Mojave.
Now we done an upgrade to OSX Catalina and the same VPN with the same connection parameters are not working. It’s seem that phase 2 handshake do not work fine and remain “in the limbo”.
Any ideas?

Thanks in advance.
v.