[RESOLVED IN 7.1.1] Video AI 7.1.0 Error during Preview and Export in trial mode

Hi guys,

After searching for a program that enhances my VHS videos via AI, I discovered Topaz Video AI and am currently testing it. Unfortunately I quickly encountered a problem. I selected a video and wanted to test the preview after a few settings. Unfortunately, the preview does not work. Only a “Failed” appears.

My Hardware
CPU: AMD Ryzen 5 5600X 6-Core Processor
RAM: 32 GB; 2/4 Slots; Speed: 3600MHz
SSD: Intel 1TB
GPU: NVIDIA GeForce RTX 4070
OS: Windows 11 Pro

Nvidia Driver: Nvidia Studio Driver Version: 577.00 (Newest Version)

Program Settings

Global Settings

Steps:
Start a free trial and login with my GMAIL Account (Works✅)

Choose a Video (In this case I choose a video with 4:55Min) (Works✅)

Then I choose “Start editing” instead of use a preset

I can see my Video and the play button works fluently (Works✅)

Now I activate Enhacement and enable the Parameters - Manual and click on Estimate (Works✅)

Now the Problem: I click on Preview 1s. At the beginning it looks like it is processing but after a few seconds an error occurs (Failed❌)


Here the logs:
2025-07-27-19-11-1-Main.tzlog (166.5 KB)
2025-07-26-22-18-10-Main.tzlog

I use the App Version 7.1.0

I have tried to solve the problem myself. i have googled, looked on youtube and on this website on older topics but nothing could help me. i hope you can help me, you are my last hope. Thank you very much.