while working on a new plugin Visual Studio notified me about the following exception (occurs multiple times):
Exception thrown at 0x00007FFFC7FDCF19 in VST3PluginTestHost.exe: Microsoft C+±Exception: _com_error at address 0x000000000014DE90.
When compiling and executing another VST3 project (a test plugin with completety different code), the very same exceptions are thrown. So I think it is not the code of my plugins that causes the exceptions, but something inside VST3PluginTestHost.exe. The plugins themselves work as expected and do not throw any exceptions, neither in VST3PluginTestHost.exe nor in any other host.
I also noticed some time ago that VST3PluginTestHost.exe started showing some issues. For example, the program doesn’t store plugin data anymore when exiting in order to restore them when restarting it. When I started using VST3PluginTestHost.exe this worked fine, but suddenly and for no obvious reason the settings of my plugins aren’t restored anymore when restarting the test host. Instead, the plugins’ parameters are set to their default values as set when initializing the plugin.
Is it possible that the exceptions are the reason for the issue described above? and is there anything I can do to find the reason for these exceptions?
Thanks in advance.