I built Ardour 9 on Arch today and when I click ace compressor or x42 eq it opens the first time and then when I try to click another, it freezes and crashes. I tried 8.12 also with the same result. If I run from a terminal it says failed to instantiate plugin
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We can’t support self-builds unfortunately. Please download the free/demo from Download Ardour | Ardour Community and verify that it does or does not happen with the official builds.
Sounds like Arch’s mesa bug - [SOLVED] Ardour crashes when re-opening a plugin window - #2 by x42
Try updating to mesa-git 25.3.0 or later.
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I really appreciate that you guys come on here to help. Just to clarify, I built Ardour 9 this morning but 8.12 was from the official Ardour bundle with the same issue. And thank you Robin. Building mesa-git solved the issue.