In Tor Browser nightly, Tor fails to boostrap, hangs at 50%

8/26/19, 20:54:01.877 [NOTICE] DisableNetwork is set. Tor will not make or accept non-control network connections. Shutting down all existing connections. 
8/26/19, 20:54:01.877 [NOTICE] DisableNetwork is set. Tor will not make or accept non-control network connections. Shutting down all existing connections. 
8/26/19, 20:54:01.878 [NOTICE] DisableNetwork is set. Tor will not make or accept non-control network connections. Shutting down all existing connections. 
8/26/19, 20:54:01.878 [NOTICE] Opening Socks listener on 127.0.0.1:9150 
8/26/19, 20:54:01.878 [NOTICE] Opened Socks listener on 127.0.0.1:9150 
8/26/19, 20:54:01.878 [NOTICE] Renaming old configuration file to "C:\Users\user\Desktop\Tor Browser GeKo Test2\Browser\TorBrowser\Data\Tor\torrc.orig.1" 
8/26/19, 20:54:02.292 [NOTICE] Bootstrapped 5% (conn): Connecting to a relay 
8/26/19, 20:54:02.622 [NOTICE] Bootstrapped 10% (conn_done): Connected to a relay 
8/26/19, 20:54:03.285 [NOTICE] Bootstrapped 14% (handshake): Handshaking with a relay 
8/26/19, 20:54:03.579 [NOTICE] Bootstrapped 15% (handshake_done): Handshake with a relay done 
8/26/19, 20:54:03.580 [NOTICE] Bootstrapped 20% (onehop_create): Establishing an encrypted directory connection 
8/26/19, 20:54:03.863 [NOTICE] Bootstrapped 25% (requesting_status): Asking for networkstatus consensus 
8/26/19, 20:54:04.155 [NOTICE] Bootstrapped 30% (loading_status): Loading networkstatus consensus 
8/26/19, 20:54:06.827 [NOTICE] I learned some more directory information, but not enough to build a circuit: We have no usable consensus. 
8/26/19, 20:54:07.168 [NOTICE] Bootstrapped 40% (loading_keys): Loading authority key certs 
8/26/19, 20:54:08.289 [WARN] Your configuration excludes 100% of all possible guards. That's likely to make you stand out from the rest of the world. 
8/26/19, 20:54:08.289 [NOTICE] Switching to guard context "restricted" (was using "default") 
8/26/19, 20:54:08.289 [NOTICE] The current consensus has no exit nodes. Tor can only build internal paths, such as paths to onion services. 
8/26/19, 20:54:08.289 [NOTICE] Bootstrapped 45% (requesting_descriptors): Asking for relay descriptors 
8/26/19, 20:54:08.290 [NOTICE] I learned some more directory information, but not enough to build a circuit: We need more microdescriptors: we have 0/0, and can only build 0% of likely paths. (We have 0% of guards bw, 0% of midpoint bw, and 0% of end bw (no exits in consensus, using mid) = 0% of path bw.) 
8/26/19, 20:54:08.807 [NOTICE] Bootstrapped 50% (loading_descriptors): Loading relay descriptors 
8/26/19, 20:54:09.210 [NOTICE] The current consensus contains exit nodes. Tor can build exit and internal paths.