If you landed on this page, you are likely staring at a frustrating screen. Your cursor is spinning. The fans on your Mac are roaring like a jet engine (the "hot" part of the query). And somewhere in the chaos, you have seen a cryptic error code——or a mention of “groupdmg” while trying to install or run Adobe Photoshop on macOS Monterey .
This loop runs thousands of times per second. Because the mount point is locked by Monterey’s System Integrity Protection (SIP), the process never escapes the loop. The CPU core assigned to groupdmg runs at maximum frequency, drawing high current. On an M1 Mac, this manifests as the right side of the keyboard (near the M1 chip) getting alarmingly hot. photoshop 2512 monter groupdmg hot
Starting with Monterey 12.3, Apple removed support for legacy system extensions and tightened hdiutil (the command that mounts DMG files). The Adobe Creative Cloud desktop app, depending on the version, still uses an older mount process for its "Group" installers. If you landed on this page, you are