Problem with some downloaded plugins: they don't play

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Hi, I have a problem. I tried to download VST plugins from external software. I have tried with two types of 808 downloaded from different sites.
In the beginning they work well. Then, after closing and reopening LMMS, both do not work, or better: if I try to use the piano roll they do not emit any sound except a horrible distorted noise or an annoying hiss, even if the plugin interface is open.
Thanks in advance and I hope you have a solution.
P.S. not with all plugins even external it happens
Miki wrote:
Thu Apr 02, 2020 11:38 am
VST plugins from external software.
After closing and reopening LMMS, both do not work- except a horrible distorted noise or an annoying hiss,
-not with all plugins
To me it sounds like you are on an old version(?)
could you please post your:
* Name of your Operative System (Windows/ Linux/ Mac) And subtype ('Home' 'Mint' '10.13' aso)
* lmms version
* lmms sound device chosen
* hardware specification (ram & soundcard is the most important)
* VST involved & link to a download for this VST
Operating system: Windows 10
Lmms version: 1.1.3
RAM: 12 GB
Sound Card: Intel (R)
Suond device: USB Audio Device
Link 1: http://www.mediafire.com/file/yph5x517l ... C.zip/file#!

Link 2:
http://www.vst4free.com/free_vst.php?pl ... te&id=2709

Sites:
https://hexloops.com/xsub-plugin
http://www.vst4free.com/
You're using a very old version of LMMS.

Back up you're project in the project folder then install the latest version of LMMS and try again.

https://lmms.io/download#windows

Depending on you're windows version and you're hardware, you want the 32 bit or the 64 bit version.
At the moment it seems to work well but it is still early to say this ...:)
I hope it continues to work, thank you very much.
If I have other problems I will write again : )