fte is not working using default tor browser bridges

When running fte using Tor Browser nightly, with the following bridges configured in torrc:

Bridge fte 128.105.214.163:8080 A17A40775FBD2CA1184BF80BFC330A77ECF9D0E9
Bridge fte 131.252.210.150:8080 0E858AC201BF0F3FA3C462F64844CBFFC7297A42
Bridge fte 128.105.214.162:8080 FC562097E1951DCC41B7D7F324D88157119BB56D
Bridge fte 128.105.214.161:8080 1E326AAFB3FCB515015250D8FCCC8E37F91A153B

We are getting the following log:

Nov 18 22:57:29.200 [notice] Tor 0.4.0.0-alpha-dev (git-bf82389e198a0cc6) running on Linux with Libevent 2.1.8-stable, OpenSSL 1.0.2p, Zlib 1.2.8, Liblzma N/A, and Libzstd N/A.
Nov 18 22:57:29.200 [notice] Tor can't help you if you use it wrong! Learn how to be safe at https://www.torproject.org/download/download#warning
Nov 18 22:57:29.200 [notice] This version is not a stable Tor release. Expect more bugs than usual.
Nov 18 22:57:29.200 [notice] Tor is running with Rust integration. Please report any bugs you encounter.
Nov 18 22:57:29.200 [notice] Read configuration file "/tmp/s8NAO70li5".
Nov 18 22:57:29.200 [notice] Read configuration file "/home/tbb-testsuite/tbb-testsuite/tmp/4vi3CfW2Ri/tor-browser_ar/Browser/TorBrowser/Data/Tor/torrc".
Nov 18 22:57:29.202 [notice] Opening Socks listener on 127.0.0.1:9550
Nov 18 22:57:29.202 [notice] Opened Socks listener on 127.0.0.1:9550
Nov 18 22:57:29.202 [notice] Opening Control listener on 127.0.0.1:9551
Nov 18 22:57:29.202 [notice] Opened Control listener on 127.0.0.1:9551
Nov 18 22:57:29.000 [notice] Parsing GEOIP IPv4 file /home/tbb-testsuite/tbb-testsuite/tmp/4vi3CfW2Ri/tor-browser_ar/Browser/TorBrowser/Data/Tor/geoip.
Nov 18 22:57:29.000 [notice] Bootstrapped 0%: Starting
Nov 18 22:57:29.000 [notice] Starting with guard context "bridges"
Nov 18 22:57:29.000 [notice] Delaying directory fetches: No running bridges
Nov 18 22:57:31.000 [notice] Bootstrapped 5%: Connecting to directory server
Nov 18 22:57:31.000 [notice] Bootstrapped 10%: Finishing handshake with directory server
Nov 18 22:57:31.000 [warn] Proxy Client: unable to connect to 128.105.214.163:8080 ("Connection refused")
Nov 18 22:57:31.000 [warn] Proxy Client: unable to connect to 128.105.214.162:8080 ("Connection refused")
Nov 18 22:57:32.000 [warn] Proxy Client: unable to connect to 128.105.214.163:8080 ("Connection refused")
Nov 18 22:57:32.000 [warn] Proxy Client: unable to connect to 128.105.214.162:8080 ("Connection refused")
Nov 18 22:57:34.000 [warn] Proxy Client: unable to connect to 128.105.214.163:8080 ("Connection refused")
Nov 18 22:57:34.000 [warn] Proxy Client: unable to connect to 128.105.214.162:8080 ("Connection refused")
Nov 18 22:57:37.000 [warn] Proxy Client: unable to connect to 128.105.214.162:8080 ("Connection refused")
Nov 18 22:57:39.000 [notice] New control connection opened from 127.0.0.1.
Nov 18 22:57:39.000 [warn] Proxy Client: unable to connect to 128.105.214.163:8080 ("Connection refused")
Nov 18 22:57:39.000 [warn] Proxy Client: unable to connect to 128.105.214.162:8080 ("Connection refused")
Nov 18 22:57:41.000 [warn] Proxy Client: unable to connect to 128.105.214.162:8080 ("Connection refused")
Nov 18 22:57:46.000 [warn] Proxy Client: unable to connect to 128.105.214.162:8080 ("Connection refused")
Nov 18 22:57:46.000 [warn] Proxy Client: unable to connect to 128.105.214.163:8080 ("Connection refused")
Nov 18 22:57:53.000 [warn] Proxy Client: unable to connect to 128.105.214.162:8080 ("Connection refused")
Nov 18 22:57:55.000 [warn] Proxy Client: unable to connect to 128.105.214.162:8080 ("Connection refused")
Nov 18 22:57:58.000 [warn] Proxy Client: unable to connect to 128.105.214.163:8080 ("Connection refused")
Nov 18 22:58:00.000 [warn] Proxy Client: unable to connect to 128.105.214.162:8080 ("Connection refused")
Nov 18 22:58:01.000 [warn] Proxy Client: unable to connect to 128.105.214.161:8080 ("TTL expired")
Nov 18 22:58:06.000 [warn] Proxy Client: unable to connect to 128.105.214.162:8080 ("Connection refused")
Nov 18 22:58:07.000 [warn] Proxy Client: unable to connect to 128.105.214.162:8080 ("Connection refused")
Nov 18 22:58:09.000 [warn] Proxy Client: unable to connect to 128.105.214.162:8080 ("Connection refused")
Nov 18 22:58:09.000 [warn] Proxy Client: unable to connect to 128.105.214.163:8080 ("Connection refused")
Nov 18 22:58:13.000 [warn] Proxy Client: unable to connect to 128.105.214.163:8080 ("Connection refused")
Nov 18 22:58:13.000 [warn] Proxy Client: unable to connect to 128.105.214.162:8080 ("Connection refused")
Nov 18 22:58:33.000 [warn] Proxy Client: unable to connect to 128.105.214.161:8080 ("TTL expired")
Nov 18 22:58:43.000 [warn] Proxy Client: unable to connect to 128.105.214.162:8080 ("Connection refused")
Nov 18 22:58:43.000 [warn] Proxy Client: unable to connect to 128.105.214.163:8080 ("Connection refused")
Nov 18 22:58:57.000 [warn] Proxy Client: unable to connect to 128.105.214.163:8080 ("Connection refused")
Nov 18 22:59:13.000 [warn] Proxy Client: unable to connect to 128.105.214.161:8080 ("TTL expired")
Nov 18 22:59:31.000 [warn] Proxy Client: unable to connect to 128.105.214.162:8080 ("Connection refused")
Nov 18 22:59:37.000 [warn] Proxy Client: unable to connect to 128.105.214.163:8080 ("Connection refused")
Nov 18 22:59:49.000 [warn] Proxy Client: unable to connect to 128.105.214.162:8080 ("Connection refused")
Nov 18 22:59:59.000 [warn] Proxy Client: unable to connect to 128.105.214.161:8080 ("TTL expired")
Nov 18 23:00:09.000 [warn] Proxy Client: unable to connect to 128.105.214.163:8080 ("Connection refused")
Nov 18 23:00:30.000 [warn] Proxy Client: unable to connect to 128.105.214.162:8080 ("Connection refused")
Nov 18 23:00:54.000 [warn] Proxy Client: unable to connect to 128.105.214.163:8080 ("Connection refused")
Nov 18 23:00:55.000 [warn] Proxy Client: unable to connect to 128.105.214.161:8080 ("TTL expired")
Nov 18 23:00:59.000 [warn] Proxy Client: unable to connect to 128.105.214.162:8080 ("Connection refused")
Nov 18 23:01:32.000 [warn] Proxy Client: unable to connect to 128.105.214.161:8080 ("TTL expired")
Nov 18 23:01:41.000 [warn] Proxy Client: unable to connect to 128.105.214.162:8080 ("Connection refused")
Nov 18 23:02:17.000 [warn] Proxy Client: unable to connect to 128.105.214.163:8080 ("Connection refused")
Nov 18 23:02:18.000 [warn] Proxy Client: unable to connect to 128.105.214.161:8080 ("TTL expired")
Nov 18 23:02:29.000 [warn] Proxy Client: unable to connect to 128.105.214.162:8080 ("Connection refused")
Nov 18 23:02:40.000 [notice] Catching signal TERM, exiting cleanly.