A blank panel in Adobe CEP extensions is typically caused by a Creative Cloud sync issue, macOS security flags (Gatekeeper quarantine), or missing PlayerDebugMode permissions. Please try the following solutions:

Fix for macOS (Terminal)

Option 1: Universal Terminal Command (Recommended)

Quit Adobe Illustrator, open the Terminal app (Cmd + Space, type "Terminal"), paste this single all-in-one command, and press Enter:

(Enter your Mac password when prompted, then restart Adobe Illustrator).

Detailed Step-by-Step Breakdown for Mac:

1. Enable PlayerDebugMode & Reset Preferences:
   for v in {8..20}; do defaults write com.adobe.CSXS.$v PlayerDebugMode 1; done
   killall -u `whoami` cfprefsd
2. Remove Quarantine Attributes (Gatekeeper):
   sudo xattr -cr ~/Library/Application\ Support/Adobe/CEP/extensions/
   sudo xattr -cr /Library/Application\ Support/Adobe/CEP/extensions/
3. Set Correct Folder Permissions:
   chmod -R 755 ~/Library/Application\ Support/Adobe/CEP/extensions/
4. Clear CEP Cache (cep_cache):
   rm -rf ~/Library/Caches/CSXS/* && rm -rf ~/Library/Caches/com.adobe.CSXS.* && killall cfprefsd

Option 2: Roll Back to Illustrator v29.4 via Creative Cloud (Fallback)

Starting with Illustrator v29.5, Adobe migrated the CEP 12 rendering engine to Apple Metal. If your macOS environment or GPU does not fully support Metal (e.g., virtual machines or older setups), roll back to v29.4:

1. Open the Creative Cloud Desktop application.
2. Go to the Apps tab.
3. Find Adobe Illustrator under Installed apps.
4. Click the three dots icon (...) (More actions) next to the "Open" button.
5. Select Other versions from the dropdown menu.
6. Locate Illustrator v29.4 (or the latest 29.4.x release) and click Install.
7. Once installed, launch Illustrator and open the panel.

Fix for Windows (Registry)

The automated Windows installer (ArrangeMaster-Setup.exe) configures this registry key automatically during setup. However, if you installed the plugin manually using a .zxp file and ZXP installer, you must create a registry key to unlock the panel. Follow these steps to create the fix file yourself:

1. Open Notepad.
2. Copy the code below and paste it into the empty text file:

3. Click File > Save As.
4. Name the file fix.reg (make sure to select "All Files" in the "Save as type" dropdown so it doesn't save as .txt).
5. Double-click the created fix.reg file and click Yes to confirm adding the data to your Registry.
6. Restart Adobe Illustrator.

Connection errors during license activation or demo initialization are typically caused by regional firewall restrictions, ISP routing conflicts, or proxy settings. Follow these steps to resolve the issue:

1. Check Service Status

Arrange Master distributes endpoint lists and secure engine modules via Cloudflare and GitHub. Check Cloudflare Status and GitHub Status. If an outage is active, wait until services recover and try again. Otherwise, proceed to steps 2 and 3.

2. Configure VPN / Proxy (Mainland China & Restricted Regions)

Standard system proxies often do not route internal network traffic from Adobe Illustrator. If you are using a proxy client (such as Clash or V2Ray):

• Temporarily switch your proxy client to Global Mode or enable TUN Mode (Virtual Network Adapter). This forces Illustrator to route all traffic through the proxy.
• Click Activate Device (or open the demo panel).
• If the full version of Arrange Master is once verified, the engine is cached locally, and you can switch your proxy client back to its standard mode.

3. Temporarily Pause Antivirus / Firewall

Third-party security software (such as Kaspersky, Avast, Bitdefender, McAfee, or 360 Security) or strict local firewall rules can block Illustrator's background network process (CEPHtmlEngine.exe), returning an EACCES connection error:

• Temporarily pause your antivirus web/real-time protection for 5 minutes.
• Alternatively, check your firewall settings and allow outbound connections for CEPHtmlEngine.exe and Illustrator.exe.
• Click Activate Device (or reopen the demo panel). Once activated, the license is cached permanently and you can turn your antivirus back on.

4. Resolve IPv6 Routing Conflicts (EACCES Error)

An error like EACCES [2606:4700:...] indicates that your local ISP has an IPv6 routing issue with Cloudflare edge nodes (common in Southeast Asia). Since license activation is a one-time process and Arrange Master works 100% offline afterward, use one of these quick fixes:

• Option A (Fastest): Connect your computer temporarily to a mobile hotspot (4G/5G) or a VPN, open Illustrator, and click Activate Device. Once activated, return to your regular Wi-Fi.
• Option B (Disable IPv6 on Windows):
  1. Press Win + R, type ncpa.cpl, and press Enter.
  2. Right-click your active network adapter (Wi-Fi or Ethernet) and select Properties.
  3. Uncheck Internet Protocol Version 6 (TCP/IPv6) and click OK.
  4. Restart Illustrator and click Activate Device. (You can re-enable IPv6 afterward).

Once installed, restart Adobe Illustrator. You can find the panel in the top menu under:

Window > Extensions > Arrange Master

Free ExtendScript scripts process items sequentially using simple bounding boxes, which often causes Illustrator to freeze on large selections. Arrange Master offloads math to a background Chromium process, performs true-shape nesting for complex vectors, provides a non-destructive session workflow, and preserves multi-layer prepress structures (Cut, Print, Marks) without flattening your artwork.

Arrange Master calculates the visual area of all selected objects and automatically designates the object with the largest area as the container. All other selected items are treated as objects to be arranged inside it.

Raster graphics (photos, embedded or linked images) are supported in standard layout modes (Grid, Knolling, Greedy, Shape Respect) based on their rectangular bounding boxes. Dense Packing mode requires vector path geometry for contour analysis, so it is vector-only.

Both. Grid, Knolling, and standard Greedy or Shape Respect modes use bounding boxes for fast layout generation. Enabling Dense Packing in Greedy or Shape Respect activates vector path analysis, allowing items to interlock and fill internal shape cavities.

Yes. You can select items across multiple layers. Arrange Master automatically clusters overlapping multi-layer components during arrangement, and upon clicking Ok, restores every object to its original layer and stacking order.

Grid, Knolling, and Greedy layout algorithms calculate placement using the rectangular bounding box of the container. To pack items strictly inside curved or custom vector boundaries, use the Shape Respect Layout mode.

Note: If your container is a complex grouped shape, ungroup it first and convert it to a Compound Path (Cmd+8 / Ctrl+8) so the algorithm can analyze it as a single shape.