DNS protocol (or UDP?) does not transfer properly through Trojan protocol about sing-box HOT 10 CLOSED

sing-box-1  | 6556 INFO [2301277665] inbound/trojan[trojan-raw]: inbound connection from HIDDEN:52346
sing-box-1  | 6556 INFO [72342096] inbound/trojan[trojan-raw]: fallback connection to caddy:8080
sing-box-1  | 6556 DEBUG [72342096] dns: lookup domain caddy
sing-box-1  | 6556 INFO [72342096] dns: lookup succeed for caddy: 172.18.0.3
sing-box-1  | 6556 DEBUG [72342096] dns: resolved [172.18.0.3]
sing-box-1  | 6556 INFO [72342096] outbound/direct[direct-out]: outbound connection to 172.18.0.3:8080
sing-box-1  | 6557 DEBUG [2301277665] inbound/trojan[trojan-raw]: connection closed: process connection from HIDDEN:57026: download: EOF | upload: EOF
sing-box-1  | 6561 INFO [284126810] inbound/trojan[trojan-raw]: inbound connection from HIDDEN:52344
sing-box-1  | 6561 INFO [3281501931] inbound/trojan[trojan-raw]: fallback connection to caddy:8080
sing-box-1  | 6561 DEBUG [3281501931] dns: lookup domain caddy
sing-box-1  | 6561 INFO [3281501931] dns: lookup succeed for caddy: 172.18.0.3
sing-box-1  | 6561 DEBUG [3281501931] dns: resolved [172.18.0.3]
sing-box-1  | 6561 INFO [3281501931] outbound/direct[direct-out]: outbound connection to 172.18.0.3:8080
sing-box-1  | 6561 DEBUG [284126810] inbound/trojan[trojan-raw]: connection closed: process connection from HIDDEN:58994: download: EOF | upload: EOF
sing-box-1  | 6566 INFO [2791008288] inbound/trojan[trojan-raw]: inbound connection from HIDDEN:52340
sing-box-1  | 6566 INFO [2135523363] inbound/trojan[trojan-raw]: fallback connection to caddy:8080
sing-box-1  | 6566 DEBUG [2135523363] dns: lookup domain caddy
sing-box-1  | 6566 INFO [2135523363] dns: lookup succeed for caddy: 172.18.0.3
sing-box-1  | 6566 DEBUG [2135523363] dns: resolved [172.18.0.3]
sing-box-1  | 6566 INFO [2135523363] outbound/direct[direct-out]: outbound connection to 172.18.0.3:8080

INFO[0000] router: loaded geoip database: 250 codes
INFO[0000] router: loaded geosite database: 1033 codes
INFO[0000] router: updated default interface wlan0, index 4
INFO[0000] inbound/tun[tun-in]: started at tun0
INFO[0000] sing-box started (0.99s)
INFO[0001] [2571765276] inbound/tun[tun-in]: inbound packet connection from 172.19.0.1:56518
INFO[0001] [2571765276] inbound/tun[tun-in]: inbound packet connection to 1.1.1.1:53
DEBUG[0001] [2571765276] router: sniffed packet protocol: dns
DEBUG[0001] [2571765276] router: match[0] protocol=dns => dns-out
DEBUG[0001] [2571765276] dns: exchange google.com A INET
DEBUG[0001] [2571765276] dns: match[1] geosite=geolocation-!cn => cloudflare
INFO[0001] outbound/trojan[trojan-in]: outbound packet connection to 1.1.1.1:53
INFO[0006] [3553828839] inbound/tun[tun-in]: inbound packet connection from 172.19.0.1:44218
INFO[0006] [3553828839] inbound/tun[tun-in]: inbound packet connection to 1.1.1.1:53
DEBUG[0006] [3553828839] router: sniffed packet protocol: dns
DEBUG[0006] [3553828839] router: match[0] protocol=dns => dns-out
DEBUG[0006] [3553828839] dns: exchange google.com A INET
DEBUG[0006] [3553828839] dns: match[1] geosite=geolocation-!cn => cloudflare
INFO[0006] outbound/trojan[trojan-in]: outbound packet connection to 1.1.1.1:53
ERROR[0011] [2571765276] dns: exchange failed for google.com.: context deadline exceeded
DEBUG[0011] [2571765276] inbound/tun[tun-in]: connection closed: EOF | upstream: context canceled
INFO[0011] outbound/trojan[trojan-in]: outbound packet connection to 1.1.1.1:53
INFO[0011] [3410565808] inbound/tun[tun-in]: inbound packet connection from 172.19.0.1:39615
INFO[0011] [3410565808] inbound/tun[tun-in]: inbound packet connection to 1.1.1.1:53
DEBUG[0011] [3410565808] router: sniffed packet protocol: dns
DEBUG[0011] [3410565808] router: match[0] protocol=dns => dns-out
DEBUG[0011] [3410565808] dns: exchange google.com A INET
DEBUG[0011] [3410565808] dns: match[1] geosite=geolocation-!cn => cloudflare
ERROR[0016] [3553828839] dns: exchange failed for google.com.: context deadline exceeded
DEBUG[0016] [3553828839] inbound/tun[tun-in]: connection closed: EOF | upstream: context canceled
INFO[0016] outbound/trojan[trojan-in]: outbound packet connection to 1.1.1.1:53
ERROR[0021] [3410565808] dns: exchange failed for google.com.: context deadline exceeded
DEBUG[0021] [3410565808] inbound/tun[tun-in]: connection closed: EOF | upstream: context canceled

frontend tcp_in
    bind *:443 alpn h2,http/1.1

    tcp-request inspect-delay 5s
    tcp-request content accept if { req_ssl_hello_type 1 }

    acl is_SING req_ssl_sni -i sing.example.com

    use_backend Live if is_SING

    default_backend default_web

backend SING
  server sing.example.com sing-box:443 send-proxy-v2

backend default_web
  server caddy caddy:443 send-proxy-v2

  "dns": {
    "servers": [
      {
        "address": "tcp://8.8.8.8", 
        "detour": "trojan-out"
      }
    ]
  },

  "dns": {
    "servers": [
      {
        "address": "udp://8.8.8.8", 
        "detour": "trojan-out"
      }
    ]
  },