UVPackmaster4 throws an error every time I run “Ze...
# zenuv-supportk
Kyle
03/25/2026, 4:27 PMThe notification only appears in the 3D viewport. It works fine in the UV Editor with no errors. Zen Unwrap only performs seam cutting without using UVPackmaster for packing. Similarly, Pack Islands does not function and only displays an error. Both features work correctly only in the UV Editor.
https://cdn.discordapp.com/attachments/1486401114831192186/1486401115602948156/E1CEB721-8C37-431C-8B22-06916FB11D56.png?ex=69c55e69&is=69c40ce9&hm=aa4f1328dfbed06d950baa3352d472d30d1474467a4cd6af4879df73d38b3120&
https://cdn.discordapp.com/attachments/1486401114831192186/1486401116680880222/A2A05D41-1184-43E5-96DF-C1ED6E195586.png?ex=69c55e6a&is=69c40cea&hm=87037189b60562a7ff2275aa49cf35fa000cd11eb75a418d3667b565e480c36a&
Kyle
03/25/2026, 4:36 PMAdditional : The error also occurs in the Popup Panel. So yeah, the issue happens in both the 3D Viewport Pie Menu and the 3D Viewport Popup Panel.
https://cdn.discordapp.com/attachments/1486401114831192186/1486403497837727765/147509AB-ED16-488E-8EA5-D6D596A6486C.png?ex=69c560a1&is=69c40f21&hm=6e5fb0277827c5447fa67204919f5714198c23aecf84c517b60150279f8cedd0&
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Valeriy Yatsenko
03/25/2026, 6:33 PMHey. Does the UV Packmaster work from its panel?
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Kyle
03/26/2026, 4:37 AMyeah everything works fine. Problem only exist with 3D Viewport and specific to Zen UV feature that use UVPackmaster4
https://cdn.discordapp.com/attachments/1486401114831192186/1486584887547789392/3018E3F6-B168-48B5-BC5D-63E5B1AA2D2B.png?ex=69c60990&is=69c4b810&hm=9060a654a37990a839bfc7920ce2b30728e0719414cfc127c5085ebba95de753&
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Valeriy Yatsenko
03/26/2026, 4:39 AMI'll check it. Thank you.
Valeriy Yatsenko
03/27/2026, 10:04 AMHey, @Kyle , I tested it in Blender 4.2.1 but installed the latest version of UV Packmaster 4.0.2. Everything works fine. You might still have UV Packmaster 4.0.0 installed. Please check it.
https://cdn.discordapp.com/attachments/1486401114831192186/1487029457226301591/image.png?ex=69c7a79a&is=69c6561a&hm=8472da7f3e2695ffdb41c28b36b8cef17b873c48ee96236cba1605db48c543b6&