Will try on the IDE connector, but wanted to post this now in case the crash takes down this VM too.
Good: at least it didn't do that. But the GUI crashes there as well.
The "Create New Disk / Use Existing Disk / Cancel" dialog pops up, but then the whole UI dies. I've removed and reinstalled 6.0.6, no change.
Faulting application name: VirtualBox.exe, version: 6.0.6.30049, time stamp: 0x5cb5a600
Faulting module name: Qt5GuiVBox.dll, version: 5.6.2.0, time stamp: 0x58e261e1
Exception code: 0xc0000005
Fault offset: 0x0000000000241bf4
Faulting process id: 0xb8c
Faulting application start time: 0x01d4f88248766a26
Faulting application path: C:\Program Files\Oracle\VirtualBox\VirtualBox.exe
Faulting module path: C:\Program Files\Oracle\VirtualBox\Qt5GuiVBox.dll
This is also happening with 6.0.4 after downgrading to that, so: mods, can you split this out of the 606 thread into a new one please? Thanks.
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yay, found a workaround!
If you delete the CONTROLLER and create a new one, you can then add drives to it without it crashing.
Note that this happened with a BRAND NEW VM, so if the problem is with the XML in the config file or somesuch then it should hopefully be easy to find, since it's the first-time generation that's causing it.