Can't play the game - Cutscene bug

[Trigger of Love]

So i just bought the EE and with it Spacehulk for the first time. I straight up installed the EE and when starting the game i noticed that i get a black screen with background music, when clicking i got into the main menu.
There I went to start a new campaign, it let me play through the tutorial with no problems. After that another cutscene started, again with black screen and background music and sounds, i could read the subtitles aswell. After the black cutscene ended the game stopped doing anything tho, i had to alt+F4 to get out of the game.
So right now this game is unplayable for me.

[FE Help Desk]

Please post your configuration for investigation:

1. Press the keys Windows and R from the keyboard to open the 'Run dialog box' and type: DXDIAG
2. Click the button 'OK'.
3. Post the Windows version (Operating System:), processor model (Processor:) and the amount of RAM memory (Memory:) under the tab 'System'.
4. Click the tab 'Display'.
5. Post the name of the graphics card (Name:) under 'Device' and the driver date (Date:) under 'Drivers'.
6. Click the tab 'Audio' or 'Sound'.
7. Post the name of the audio device (Name:) under 'Device' and the driver date (Date:) under 'Drivers'.

[Trigger of Love]

Thanks for your quick response.

Operating System: Windows 7 Home Premium 64-Bit-Version 6.1
Memory: 16384MB RAM

Name: NVIDIA GeForce GTX 970
Version: 24.21.13.9764
Date: 08.05.2018

Name: Speaker (Realtek High Definition Audio)
Driver Name: RTKVHD64.sys
Version: 6.00.0001.7004 (English)
Date: 30.07.2013

Edit: i also searched the game files for errors via the steamgame > properties > local files tool. It reported no errors for me.

[FE Help Desk]

Please update the driver of the REALTEK HD audio device and tell me if the cinematic is now correctly played:

1. Click https://www.techspot.com/drivers/driver/file/information/18084/
2. Click on the button 'Windows 64-bit only' under 'Download options:'.
3. Save and run the application '0008-64bit_Win7_Win8_Win81_Win10_R281.exe'.

[Tzeen]

Having the exact same issue, fix didn't work, here are my dxdiag results:

Operating System: Windows 7 Ultimate 64-Bit-Version 6.1
Memory: 16384MB RAM

Name: NVIDIA GeForce GTX 970
Version: 24.21.13.9764
Date: 08.05.2018

Name: Speakers (HyperX Cloud Revolver S)
Driver Name: USBAUDIO.sys
Version: 6.01.7601.18208 (English)
Date: 12.07.2013

Name: Realtek Digital Output (Realtek High Definition Audio)
Driver Name: RTKVHD64.sys
Version: 6.00.0001.8036 (English)
Date: 01.11.2017

Name: Asus VN247 (NVIDIA High Definition Audio)
Driver Name: nvhda64v.sys
Version: 1.03.0037.0001 (English)
Date: 05.07.2018