tor button and tor browser home page says "not connected to network"

Hello,

When starting tor browser, the browser home page displays onion crossed red saying that there was a problem and that I a not connected to tor network. Tor button also displays onion crossed red. However when visiting tor check page, it says that I am connected to tor network.

is it a bug?

thanks

tor logs :

20/10/2017 07:51:46.900 [NOTICE] Bootstrapped 90%: Establishing a Tor circuit 20/10/2017 07:51:48.700 [NOTICE] Tor has successfully opened a circuit. Looks like client functionality is working. 20/10/2017 07:51:48.700 [NOTICE] Bootstrapped 100%: Done 20/10/2017 07:52:02.100 [NOTICE] New control connection opened from 127.0.0.1. 20/10/2017 07:52:02.100 [NOTICE] New control connection opened from 127.0.0.1. 20/10/2017 08:06:03.000 [NOTICE] Our IP address has changed. Rotating keys...

Trac:
Username: tortracfree