Issues

• PDE doesn't report invalid size() arguments as a logic error

  bug
  processing/processing4#1573 · Filter by author letsmanuel opened on Sep 21, 2026
  3

• startup error

  processing/processing4#1569 · Filter by author Miuren opened on Sep 14, 2026
  7

• Binaries under bin directory lack executable permissions for the snap and .deb packages for Linux

  bug
  processing/processing4#1567 · Filter by author pedernal opened on Aug 23, 2026
  3

  

• rounded rectangle performance in P2D / P3D is extremely poor when stroke is used

  lower priority
  processing/processing4#1566 · Filter by author clankill3r opened on Aug 23, 2026
  3

• other cursors for P2D / P3D

  processing/processing4#1565 · Filter by author clankill3r opened on Aug 20, 2026

• Fail open application from remote desktop: LoadLibrary failed with error 87: incorrect param

  bug
  processing/processing4#1564 · Filter by author JavierAder opened on Aug 7, 2026

• Unable to run JavaFX in Processing 4.5.6 MacOS

  bug
  processing/processing4#1561 · Filter by author vsquared opened on Aug 5, 2026
  2

• Fixing the "Cannot access sketchbook" error requires resetting "org.processing.four," but that does not exist.

  bug
  processing/processing4#1554 · Filter by author snow-16 opened on Jul 25, 2026
  1

• webgpu window not showing up on linux

  bugwebgpu
  processing/processing4#1541 · Filter by author catilac opened on Jul 8, 2026
  

• Set up testing infrastructure for webGPU work

  build systemwebgpu
  Task

  processing/processing4#1539 · Filter by author catilac opened on Jul 8, 2026
  2

  

• OpenGL/3D sketches crash with UnsatisfiedLinkError on Linux when the bundled sketch JDK cannot fork+exec

  bug
  processing/processing4#1537 · Filter by author ZanDev32 opened on Jul 6, 2026
  3

  

• PVector angleBetween returns 0 when x and y of either parameter are both 0

  processing/processing4#1544 · Filter by author WolfyD opened on Jul 1, 2026

• Multiple external monitors displayed incorrectly in Preferences > Sketches

  bug
  processing/processing4#1530 · Filter by author SableRaf opened on Jun 23, 2026
  3

• File association problem

  bug
  processing/processing4#1529 · Filter by author tutimura-kg opened on Jun 19, 2026
  

• Missing App Drawer Icon (Flatpak)

  bug
  processing/processing4#1527 · Filter by author tziuhtli opened on Jun 16, 2026
  8

  

• Save dialog unusable

  bug
  processing/processing4#1526 · Filter by author Toxe opened on Jun 13, 2026
  6

  

• full screen bug with few device

  bug
  processing/processing4#1524 · Filter by author knupel opened on Jun 9, 2026
  1

  

• RFC: future PDE implementation as a VSCode fork

  enhancementpdequestion
  processing/processing4#1522 · Filter by author kjhollen opened on Jun 2, 2026
  5

• fullScreen(P2D, SPAN) does not span across multiple displays on macOS

  bug
  processing/processing4#1518 · Filter by author SableRaf opened on May 20, 2026

• Error "Could not get the settings folder" when opening a sketch with double click

  bug
  processing/processing4#1517 · Filter by author peripecio opened on May 13, 2026
  2

  

• determining path for portable preferences file is wrong for windows OS

  processing/processing4#1515 · Filter by author MNSEhub opened on May 6, 2026

• verify code signature for mac release action before sending for notarization

  enhancement
  processing/processing4#1504 · Filter by author kjhollen opened on Apr 17, 2026
  1

  

• P3D crash on ARM64 Snapdragon

  bug
  processing/processing4#1502 · Filter by author Stephcraft opened on Apr 13, 2026
  4

• Could not run the sketch. ERROR: transport error 202: bind failed:

  bug
  processing/processing4#1500 · Filter by author glvjr opened on Apr 8, 2026
  1

• Stroke is shaking when rotates

  bug
  processing/processing4#1481 · Filter by author vladbotlevskyi opened on Mar 16, 2026
  3