Opening M4L (Max 8) device on Windows 10 - slow

arne's icon

Curious if anyone else had this problem.
When opening a (frozen) M4L device in Max 8 (via Live 10) on Windows, it takes about a minute before the patch actually opens. Then, when I click the unfreeze button, it take about another 30 seconds before I can edit.
Same device on Mac (Sierra) opens instantly.
These devices were originally created in Max7/Live9 on a Mac.