This may be a trivially unique problem, but when having multiple assets selected in the Content Browser and selecting “Show in Explorer” it will open an individual Explorer.exe process and window to show every individual item in its respective folder.
Now I’m not saying that this isn’t intended behaviour, but it does this without warning. Even when you accidentally have over 1,600 items selected… As I discovered earlier…
A simple confirmation dialogue (that could be disabled, even) asking if you’d like to proceed, or perhaps some kind of check where if you have over ‘X number’ of items selected it will warn you.
Again, this might be a situation that only fools like myself could ever encounter, but I’d like to be able to spare at least one other person the half an hour of lost productivity and minor stroke encountered when I realised what I’d just done.
I’m personally able to replicate this every single time I try, no matter if it’s a completely new project or a downloaded example. Asset type doesn’t seem to make a difference either. Here’s how I’m going about it (using the “First Person” blueprint with starter content as my example):
Navigate to a folder in the Content Browser that has more than one asset in it (eg: Content > StarterContent > Architecture). They don’t have to be physically present in the project, just visible in the browser.
Left click one of the meshes listed and then Ctrl-A to select all in the folder (or just Shift-click/Ctrl-click to select more than one).
Right-click any of the selected meshes and select “Show In Explorer”.
If the items are present on the hard disk (and I believe they have to be to appear in the browser?) it will then open a separate Explorer window for every single object that was selected (in this example, 11 individual windows).
I’ve not ventured into C++ territory yet, though I just made a completely blank project with no starter content to see if it worked. I immediately dragged a folder of 10 .jpgs into the Content Browser as if I were to start using them to make materials with. Same results as earlier with the meshes.
Unfortunately I have not been able to reproduce this on my end thus far. The only time multiple windows open on my end is when I attempt to show in explorer multiple folders within the content browser, which I expect as each has a different overall filepath.
We have not heard from you in several days. I am marking this as answered for tracking purposes. If you are still experiencing this error, please comment with the requested information.