AU does not show GUI in 64Bit hosts

[Natanael]

Hi,

I have the following problem: My plugin works fine as VST. I used Reaper and AU Lab for AU validation and if I start Reaper or AU Lab in 32Bit Mode my GUI is shown. But if I start the hosts in 64Bit mode gui is not shown (audio works). Has somebody encountered the same problem? Or any tips to find out where the problem could be?

Thank you!

[Youlean]

You are probably using some old framework that does not use cocoa graphis. Try updating the framework. Alternatively, if GUI if shown in IPlugEffect, then you have problem in your plugin.