Getting 'Invalid request' message when relogin after session timeout -1.3.6

[rakesh-roundcube]

Login to rouncube web application. Wait until session timeout then page at top will be updated 'Your session is invalid or expired.'
If I re-log in again from that page I'm getting message: 'Invalid request! No data was saved.'
If I try log in second time, I can log in as normal. Every time it happens after session timeout.

RoundCube version-  roundcubemail-1.3.6