Starting in R2026b, MATLAB toolboxes are installed as read-only. DocMaker copies resources from the installed toolbox to the user's toolbox under development, and the file attributes are preserved when copying with copyfile. This means that subsequent doc builds fall over when they can't overwrite the existing read-only resource files, which breaks incremental builds. This issue doesn't affect buildtool clean.
Starting in R2026b, MATLAB toolboxes are installed as read-only. DocMaker copies resources from the installed toolbox to the user's toolbox under development, and the file attributes are preserved when copying with
copyfile. This means that subsequent doc builds fall over when they can't overwrite the existing read-only resource files, which breaks incremental builds. This issue doesn't affectbuildtool clean.