If anyone could help me out that would be greatly appreciated. It might have to do with some setting on the Windows 10 PC I'm not aware of.

The recording software worked on my old laptop, so I don't think it's a problem with either the capture card or recording software. I've uninstalled and reinstalled both the audio/video drivers and the recording software multiple times, and I've gone through all the video settings on my computer that I can think of but I haven't been able to get the video playback to work again. What's weird is that the software still records both video and audio ok, but I don't want to be an hour into recording a video only to find out there's something wrong with the signal. I got the video to playback once while setting it up, but since then I've got nothing but a black screen when trying to playback the video signal on the recording software. Normally you can see the video you're trying to record played back through the Honestech recording software, just to make sure that the video is playing properly. Included with the capture card is the Honestech VHS to DVD 4.0 SE software. I then started the VHS to DVD software and made sure it was set to use the VidBox on composite NTSCM and started the VHS tape playing. I then plugged the VidBox hardware in to be sure it was recognized. For context, I'm using an August VGB100 capture card that I bought off Amazon to try to record videos onto my PC. I then reinstalled version 5.0.29 VHS to DVD software first, rebooted and then reinstalled the version 3.0.6 VidBox driver and rebooted.

Honestech vhs to dvd driver