What to do when… (common problems)

I can't sign in

• Check e-mail/ID and password on the KOREOS web. Without the KoCAD permission, ask your manager.
• Browser sign-in: finish it in the browser tab; KoCAD continues by itself. "Forgot password" opens KOREOS recovery.

The extrusion makes no solid

• The outline is not closed: find the loose point, drag it until it snaps or redraw with Rectangle/Circle.
• Two outlines cross: delete the extra line.

The sketch turned red

• Over defined: one dimension or relation too many. Delete the red one (the status bar says "Over defined").

3D is slow

• View → Large assembly mode (or Auto in Options → Display & performance).
• Options → Graphics (GPU): choose the dedicated card and restart. Without a card KoCAD uses the integrated one or software.
• Click CPU/Memory in the status bar for the 60 s chart.

AI: "Waiting for the GPU" / queue / limit

• The reader is busy: the request waits and retries by itself (up to ~6 min). Cancel is safe; text and images stay.
• Account without KOREOS core: connect your AI in Options → Connect AI.

The video won't export

• Linux: install GStreamer with H.264. Choose a new name (an existing file is kept).

KoCAD closed

• Open it again: it offers the last autosave. Crashes leave a technical diagnostic (without the model) sent at the next start.
• Use Help → Report a problem with a screenshot and what you were doing.

GLB/OBJ/STL without verification

• It is a display mesh: no interference check. Open the STEP to verify.