V4.1.0.2 RTX rapid upscaler produces black video with only audio

fadhlzehour12423523

V4.1.0.2, when using RTX rapid upscaler 1080p to 2160p, the output video is completely blank and only plays the audio. the files size is also only 177mb after upscale process completes despite saying it will be 29gb, original was 4gb at 1080p. i am using an RTX5090 OC with a 9950X3D. my other pc which has a 3060 produces a normal output video. i am on the trial and this is worrying already that its broken.

Adventurer

Hi, thanks for the detailed feedback.

From your description, the output file being much smaller than expected and containing only audio does look abnormal. Since the same source video works correctly on your RTX 3060 PC, this may be related to the RTX 5090 environment, such as the GPU driver, hardware acceleration, or compatibility with the current RTX rapid upscaler in this version.

Could you please help us check a few things?

What NVIDIA driver version are you using on the RTX 5090 PC?
Does this issue only happen with RTX rapid upscaler, or does it also happen with other upscaler models?
Does it happen with all videos, or only with this specific source file?
Could you also send us the original source video you used for the conversion? This would be very helpful for reproducing and checking the issue on our side.

In the meantime, you may try updating or reinstalling the NVIDIA driver, or temporarily use another upscaler model / output setting to see whether the video can be exported normally.

We’ll need your environment details and, if possible, the source file to further investigate this issue. Thank you for helping us check it.

fadhlzehour12423523

Adventurer Drivers are fully up to date using game drivers as i also game on my 5090 pc. the issue is directly related to the rtx enhancers like hdr and upscaler. it happens with all videos, the same video files work fine on the 3060 pc. i also tried my 5060 and same issue as the 5090. i do not want to use another upscaler as they take way too long. everything works normally on the 3060 pc, but on my 5090/5060 pc it does not. i dont think having the video would help you, as it really doesnt matter what type of video it is i have tried so many. there is a direct issue between the RTX enhancers and 50 series users.

fadhlzehour12423523

Any ideas or help ?

fadhlzehour12423523

Drivers are fully up to date using game drivers as i also game on my 5090 pc. the issue is directly related to the rtx enhancers like hdr and upscaler. it happens with all videos, the same video files work fine on the 3060 pc. i also tried my 5060 and same issue as the 5090. i do not want to use another upscaler as they take way too long. everything works normally on the 3060 pc, but on my 5090/5060 pc it does not. i dont think having the video would help you, as it really doesnt matter what type of video it is i have tried so many. there is a direct issue between the RTX enhancers and 50 series users.

fadhlzehour12423523

i replied ages ago but its stuck on awaiting approval

Adventurer

Hi, we’re very sorry that you encountered this issue during your trial, and we also apologize that your earlier reply was held in “awaiting approval” status, which prevented us from following up sooner.
We understand that this can seriously affect your experience and confidence in the software, especially since you have already tested and compared the behavior on multiple PCs. Based on your feedback, the same videos can be exported normally on the RTX 3060 PC, but on both the RTX 5090 and RTX 5060 PCs, using RTX rapid upscaler / RTX enhancers, including RTX HDR and RTX upscaler, results in a blank video with audio only, and the output file size is obviously abnormal.
The test results you provided are very important. They help us better understand that this issue is very likely related to compatibility with RTX 50 series GPUs in the current version, or to an abnormal call of the RTX enhancement modules, rather than being caused by a specific source video.
We will report this as an important RTX 50 series GPU compatibility issue to our development team for further investigation. In the report, we will clearly note the key details you provided: you are using RTX 5090 / RTX 5060, your Game Ready Driver is fully up to date, the issue happens with all tested videos, and the same videos work normally on the RTX 3060 environment.
To help our development team locate the exact cause more efficiently, could you please provide the UniFab log files from the RTX 5090 or RTX 5060 PC, as well as screenshots of the output settings used when the issue occurs?
You can compress all the files in the following folder and send the ZIP file to us:
C:\Users[Your Windows username]\Documents\UniFabAI\UniFab\Log
We also understand that you do not want to switch to another upscaler because the other models take much longer to process. Therefore, temporarily using the RTX 3060 PC or avoiding RTX rapid upscaler / RTX enhancers can only be considered a workaround, not a replacement for our further investigation into RTX 50 series compatibility.
Thank you for taking the time to perform these comparison tests during your trial and for sharing such detailed feedback. This information is very helpful for improving UniFab’s support for RTX 50 series GPUs. We will continue to follow this issue closely.