Hi I use UVPackmaster 3.4.4 with ZenUv 5.1.0.7 on blender 4.5.3, I selected UVpackmaster as packing engine, I selected Heuristic but when packing with Zen it's not used 🤔 If I pack with UVPack it uses the heuristic search well. Thanks https://cdn.discordapp.com/attachments/1431670639743340574/1431670639957377217/image.png?ex=68fe42af&is=68fcf12f&hm=6b50c6ebc1ad5a0408815f95a7339878515bf113296dbed47bb0b070e42e2ae3& https://cdn.discordapp.com/attachments/1431670639743340574/1431670640351510790/image.png?ex=68fe42af&is=68fcf12f&hm=5795f540f0c647cd19c03ff89aa121e239a49ea6e3e265d148f0b8945448252f& https://cdn.discordapp.com/attachments/1431670639743340574/1431670640716283964/image.png?ex=68fe42af&is=68fcf12f&hm=76d0696a2c04458496cd912516301d5eba0c29689ee17939dcddcdc35be18a96&

Hey Zen UV provides only the most essential packing options — there’s no point in duplicating all settings of every packer inside Zen UV when you can simply open the packer’s interface and use it directly. The packing functionality in Zen UV is meant for quick, everyday tasks. If you need higher quality or advanced features such as Heuristic, it’s best to run the packer directly. There’s also a technical limitation: the Heuristic mode requires a modal operator. Modal operators run asynchronously — there’s no way to detect when their process has finished — which means we can’t safely call them from within another operator, since they would close operator (which call pack) property dialog. You can observe a similar behavior with UV Packer: if you start Zen Unwrap, you won’t be able to adjust its properties for the same reason.