This issue is only affecting Mac users. We will as soon as possible be updating the various installers with a fix so that new installations won’t be affected.
For anyone who has already installed 2019.1 on the Mac and is having this issue, please download the updater from HERE and place it in your ZBrushOSX 2019.1 folder. After it has been placed in that folder, run it to update your installation.
It is important that you place the patcher in your ZBrushOSX 2019.1 folder before you try to run it. Otherwise, it won’t be able to find ZBrush to apply the patch.
Note: This is only necessary for people who installed the Mac version before the afternoon of 5/23. All freshly downloaded installations – whether using the ZUpgrader or the full installer – already have the patch applied.