Hi, Unfortunately the dump files did not point to any particular component. It looks like a shell extension is corrupting memory when it runs, but the corruption does not trigger a crash until later on, when something else trips over the mess it has left behind, and something different ends up crashing in each of the dump files.
The best thing to do is run ShellExView and disable all of the non-Microsoft shell extensions, then fully exit Opus & restart it. If the problem does not reoccur, re-enable the shell extensions a few at a time until it comes back, which then tells you the likely problem extension is one of the ones you just re-enabled, and you can narrow it down to a single extension from there.