After rendering a video, I click on "Open" which launches the rendered video in Windows default movie player. After doing this, trying to preview video in Vegas fails.

When I click on "Open" iI get the location where that file was saved and I have to click on that file tp play it. After closing the screen of that location I'm back in Vegas where I can do all I want do do in VPro 17

@j-v Don't you get two options "Open" and "Open Folder"?

Yess sorry my fault , but it is normal that when closed that player Vegas is normal available

@EricLNZ

An error occurred while starting playback.

The request is not enabled for this device.

click on "Details"...

The record device does not support the current input format.

Maybe you have to try to use another audio device to overcome this happening?

Seems like using the "Movies and Videos" app or whatever it's called leaves some device, audio or video, in some state that Vegas does not recognize or try to re-initialize. I can close and reopen Vegas in maybe 10 or 15 seconds. It just seems stupid. It also seems like many people would hit this problem, unless it has something specifically to do with my audio device (which is a Behringer XR18 mixer).

@Digital-Larry This has cropped up a few times. Search the forum for the posts. The remedy is usually to change your audio device as @j-v suggests.

Do not have two apps open that utilize the audio driver at the same time.

This is important times 10 if you are using MS Mapper. You should use your audio device's ASIO driver iinstead, often called Direct or HD Audio.

OK, confirming that if I swap the audio device to my Behringer XR-18 and back (to MS mapper) that I don't need to stop/restart Vegas. The Behringer is a little picky because you have to set the sampling rate explicitly for whichever app you are using. Generally speaking if I am editing video then that's all I am doing, although sometimes I leave Ableton Live open. Anyway now I know the workaround, thanks.

DL

I have experienced this over the years with VPro. I simply switch the Audio Device to ANY other setting (using Preferences | Audio Device) and it works immediately. It happens when I go to other audio-related programs (internet TV, internet radio, various media websites, etc.) and then come back to VP. It won't play but puts up that error. It doesn't seem to matter what Audio Device that I use. I can switch right back to the original one and it works the second time. It just requires going to a different one than the one causing the error.

It is doing it in my new VP18 right now (the reason that I checked this thread). My three choices are: Microsoft Sound Mapper, Direct Sound Surround Mapper and Windows Classic Wave Driver. I just close my eyes and choose one when it happens (infrequently). I never have to restart VP. And I almost never have a second Windows 10 program running while editing.

fwiw, I've worked around this by setting my audio devices to not allow exclusive access (in the driver control panel).

While that's worked fine for me, others have reported that because of their devices and/or workflow, they can't do that. I've got a pretty vanilla audio setup.

ymmv

Windows Media player will with Windows 10 "AI" switch/flop codecs around faster than you can whistle Dixie.

JJK

@RonB_USA

"Direct Sound Surround Mapper" is generally preferred, although not for the same reason. You see, they are full duplex ASIO. allowing simultaneous record / monitor, and have low latency. The settings shouldn't change in Vegas when another process has control.

@Musicvid, (FYI) when I select Default All in Audio Device Preferences (VP18 Suite) it goes to Microsoft Sound Mapper. But I will set it to Direct Sound Surround Mapper right now. Thanks.

PS - I tried to get it to "error" for Audio Device by going to other media programs and it won't. So perhaps it is not other media causing my infrequent errors, but some other reason. Time will tell...