Round support / Diagnostic order

Change one variable, then test again.

These checklists separate lobby, Workshop, patch, and performance problems so you can report what actually failed instead of trying several fixes at once.

Issue library

Open the symptom that matches

01Quick checkA friend's room is not visibleRule out version, region, privacy, and host-state mismatches in a fixed order.
  1. Confirm every player has fully restarted Steam and is running the same current game version.
  2. Confirm the lobby region and whether the room is public, private, or invite-only.
  3. Ask the host to return to the lobby if the round has already started.
  4. Refresh the room list once, then recreate the lobby instead of repeatedly changing several settings.
02ConnectionThe room appears, but joining failsUse a clean retry that changes one variable at a time.
  1. Restart the game and Steam, then retry the same room without changing the map.
  2. Have the host recreate the lobby with a base-game official map.
  3. Temporarily remove Workshop content from the test so a download mismatch is not confused with networking.
  4. If several players fail at the same time, check official service notices before troubleshooting individual machines.
03WorkshopA Workshop map will not loadVerify the item and local download before changing network settings.
  1. Open the host's exact Workshop item and confirm every player is using the same entry.
  2. Allow the Steam download to complete, then restart the game before rejoining.
  3. Test one official map to confirm the base lobby still works.
  4. If only one Workshop item fails, report it on that item's page with the current game version.
04Quick checkButtons stop responding in Paint ModeUpdate 2.8.0 includes a fix related to an unclickable-button state after the Mod download screen appears.
  1. Confirm the game is updated to 2.8.0 or later.
  2. Exit Paint Mode and close the Mod download screen before retrying the control.
  3. Restart the game if the UI remains unresponsive after the screen closes.
  4. Capture the exact sequence if the problem still reproduces on the current patch.
05PerformanceA dense map has low frame rateSeparate map-specific load from a general performance problem.
  1. Restart and test an official map with no Workshop downloads active.
  2. Compare the same lobby size on a visually simpler map.
  3. Lower the most expensive graphics options one at a time and keep the useful comparison.
  4. Record map, player count, spectator state, resolution, GPU, and patch before reporting.

FAQ

Before you report a problem

Does this page show live server status?

No. It provides a diagnosis sequence and links to official announcements. Service availability can change faster than a static guide can be reviewed.

Are Workshop fixes official?

Not unless the linked source is an official announcement. Community workarounds should include the map item, patch, and a reproducible test before being treated as reliable.

What belongs in a useful bug report?

Include patch version, region, lobby visibility, player count, map source, hardware when relevant, and the smallest sequence that reproduces the issue.