Meek bridges don't work in TB 4.5alpha1

Meek bridges (amazon and azure) don't work on both windows7 and wheezy.

Tor launcher error messages: Tor failed to establish a Tor network connection. Loading network status failed (done).

Tor log: [NOTICE] Bootstrapped 5%: Connecting to directory server [NOTICE] Bootstrapped 10%: Finishing handshake with directory server [WARN] Problem bootstrapping. Stuck at 10%: Finishing handshake with directory server. (DONE; DONE; count 1; recommendation warn) [WARN] 1 connections have failed: [WARN] 1 connections died in state handshaking (TLS) with SSL state SSLv2/v3 read server hello A in HANDSHAKE

Meek client Debug messages on Windows: using helper on 127.0.0.1:49929 listening on 127.0.0.1:49932 error in handling request: WSARecv tcp 127.0.0.1:49934: i/o timeout