Problem with connexion points

[mduf]

When we convert a VSS for Fortinet (exemple FortiGate_Series_R22_2025Q2.vss, available here: https://www.fortinet.com/resources/icon-library), if I put un item in my Draw io (exemple a FortiGate 70G), I can saw the connexion point (each port have a connexion point and the item have 4 connections on his side, one point on the middle of each side), but I can only connect the 4 connections point on the perimeter of the item, not the connexion point for interfaces

[draw-io-triage-bot]

👋 Thank you for opening this issue!

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Summary: After importing a Fortinet VSS stencil file (e.g., FortiGate_Series_R22_2025Q2.vss) into draw.io, the individual interface/port connection points on shapes are visible but non-functional — only the 4 default perimeter connection points (one per side) can be used to attach connectors.

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🔍 Possible Related Issues

This issue might be related to existing issues:

🟡 #4901 - Irregular Connection Point Spacing Issue When Creating More Than 51 Connection Points
Both issues relate to connection points not working correctly on shapes with many defined connection points. The Fortinet shapes have numerous port-level connection points, and issue #4901 describes problems when shapes have more than 51 connection points. The underlying cause could be related.

Please check if any of these address your issue. If this is a duplicate, we may close this issue and continue the conversation there.

📝 Additional Information Needed

To help us investigate this more effectively, could you please provide:

• environment: Which version of draw.io is being used (desktop app version or web), and which browser/OS if using the web version?
• steps_to_reproduce: Detailed steps to reproduce: How exactly was the VSS file imported/converted? (e.g., File > Import, drag-and-drop, etc.)
• expected_behavior: Please confirm: you expect to be able to snap/connect lines to the individual interface/port connection points shown on the shape, not just the 4 cardinal-direction points on the perimeter?
• sample_file: Could you attach the resulting .drawio file (after import) so developers can inspect the connection point definitions on the shape?

We also have some questions:

• Can you confirm that the interface/port connection points are visually displayed (blue X marks) when you hover over the shape, but lines simply refuse to snap to them?
• Have you tried right-clicking the shape and selecting 'Edit Connection Points' to verify the connection points are properly defined?
• Does this issue occur with all shapes from the Fortinet VSS, or only specific ones like the FortiGate 70G?

📋 Bug Report Template

**Environment:**
- draw.io version: [e.g., web app / desktop 24.x.x / Confluence plugin]
- Browser (if web): [e.g., Chrome 120, Firefox 121]
- OS: [e.g., Windows 11, macOS 14, Ubuntu 22.04]

**Steps to Reproduce:**
1. Go to ...
2. Click on ...
3. See error

**Expected Behavior:**
What you expected to happen.

**Actual Behavior:**
What actually happened.

**Screenshots/Files:**
If applicable, add screenshots or attach the .drawio file.

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