Workflow diagram missing

[Roman_Melnyk]

Hello.
After workflow run and end, it does not show diagram.
Running in docker compose like that:
Version: 1.111.0

n8n:

image: n8nio/n8n:latest

container_name: n8n

ports:

- “5678:5678”

environment:

- TZ=Europe/Kyiv

- GENERIC_TIMEZONE=Europe/Warsaw

- N8N_ENCRYPTION_KEY=123123

- N8N_SECURE_COOKIE=false

- N8N_PROXY_HOPS=1

- DB_TYPE=postgresdb

- DB_POSTGRESDB_HOST=${POSTGRES_HOST}

- DB_POSTGRESDB_PORT=${POSTGRES_PORT}

- DB_POSTGRESDB_DATABASE=${POSTGRES_DB}

- DB_POSTGRESDB_USER=postgres

- DB_POSTGRESDB_PASSWORD=${POSTGRES_PASSWORD}

- DB_POSTGRESDB_SCHEMA=public

- DB_POSTGRESDB_POOL_SIZE=5

- DB_POSTGRESDB_SSL_ENABLED=false

- WEBHOOK_URL=“https://ai.test.xyz/”

- N8N_HOST=“ai.test.xyz”

- N8N_PROTOCOL=https

volumes:

- ./n8n_data:/home/node/.n8n

restart: always

[moosa]

Hey @Roman_Melnyk welcome to community.

That happen some times when there is load on machine.
It should work after refreshing the page.

[Roman_Melnyk]

Hello @moosa

Thank you for help.

Seems like no changes, in execution tab there is instance load wheel and image won’t loading.

In docker logs I did not see any errors.

Any other places I can check to detect the problem ?

[Roman_Melnyk]

Problem solved.

Problem was in buffer SSE/WebSocket responses, because I run n8n behind reverse proxy.

Here is config that helped me.

map $http_upgrade $connection_upgrade { default upgrade; ‘’ close; }

server {

proxy_http_version 1.1;

proxy_read_timeout 3600s;

proxy_send_timeout 3600s;

location / {

proxy_pass http://127.0.0.1:5678/;
proxy_set_header Host $host;

proxy_set_header X-Real-IP $remote_addr;

proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

proxy_set_header X-Forwarded-Proto $scheme;

proxy_set_header X-Forwarded-Host $host;

proxy_set_header X-Forwarded-Port 443;

proxy_set_header Upgrade $http_upgrade;

proxy_set_header Connection $connection_upgrade;

proxy_buffering off;

chunked_transfer_encoding on;

add_header X-Accel-Buffering no;

}

}