Logic Pro 11: MPE & Preset Buttons Reset After Duplication

[andrei s]

Hello!
I'm testing an new instrument in different DAWs.
An issue has been noticed in Logic Pro 11 when duplicating an instrument or reopening a project with MPE mode enabled. The MPE modules get disabled, even though the MPE button remains active. This does not happen in Logic 10.7.6.
Logic 11 seems to have trouble recalling the MPE state after duplication or project reload. Tests in Ableton and Reaper show that the problem does not occur there.
Another issue affects the preset selection buttons, which indicate the currently active preset. While the preset itself remains correct after duplication, the button resets to the default one.
Both the preset selection buttons and the MPE state are checked using a timer that starts during initialization.

My older instruments using the same MPE and preset button code, compiled with a HISE version from early 2023, work fine in Logic 11 without these issues.
I’ve tried exporting with different HISE versions—2025 (one of the latest), Sep 2024, May 2024 and Jan 2023.

Any idea what might be causing this?