Raw 64 bit VST3 plugin fails to clone or reload in FL Studio 12

Windows
1

Hi,

Came across a weird issue. And the issue only happens on 64 bit VST3 plugin, 32 bit/64 bit VST and 32 bit VST3 all work fine. I am on Windows 10 with the latest JUCE 4.3.0, and the previous version JUCE4.2.3 has the same issue.

I used the Projucer to create a 64 bit VST3 plugin demo( Project Settings: Audio plugin, Build VST3, channel {0, 2}, is a Synth, plugin wants MIDI input ), then load the plugin in FL Studio 12 64bit.

Every time I try to clone the plugin, or load a project with the plugin in it, it will throw a read access violation exception in juce_VST3_Wrapper.cpp, see the picture below( Sorry, I can only upload one picture as a new user, so I combined the screenshots together…):

vst3_issue.png1239×1754 258 KB

2

I’m trying to reproduce this - what do you mean by clone a plug-in? I’ve not got a license for FL Studio 12 so loading things from file is blocked.

3

Hey Tom,

Thanks for your reply. To clone a plugin, you just need to load a plugin, then right click on it, then there would be a clone option, it will duplicate the plugin you selected.

4

If it’s not obvious what the problem is, you can always try your luck on the FL forums. The devs are usually on it in a short period of time!

5

I’ve pushed a fix for this to the develop branch.

6

Thanks Tom, it works fine now! :slight_smile: