I have a similar question to this (unsolved) one, but mine has a big difference. I exactly know when the following error appears:
The instruction at 0x00000000 referenced memory at 0x00000000. The memory could not be written.
It happens every time I right-click on the USB icon (inside the VM) to enumerate the USB device available.
I updated both Host and Guest Additions to the latest version:
It seems there are no differences about what devices are connected.
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