Aaron Liu comments

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                                            Aaron Liu

Upscayl fails when using some paths with UTF8 characters

@RafaelLinux Would you kindly try again? :)

src: modernize likely/unlikely hints

We've recently released 2.0. Let us know if the [[(un)likely]] detection works!

Buggy support for indexed colors on Windows (causes random loss of transparency)

I cannot reproduce. Also, are you on 2.8.6? 2.8.3 does not exist.

Buggy support for indexed colors on Windows (causes random loss of transparency)

That looks like your picture originally had a grey background

Buggy support for indexed colors on Windows (causes random loss of transparency)

To confirm, you are on 2.8.6, right? Could you send over the A380 image? Did you change any settings?

Buggy support for indexed colors on Windows (causes random loss of transparency)

I was asking @MoutonBinoclard. But thanks, as I indeed can reproduce with the picture provided. Also that screenshot is low-res, hence the pixelation. [Weirdly, this file still gives transparent results.](https://github.com/upscayl/upscayl/assets/11874211/c89387f7-7189-41cd-83f6-8e216a568f59)

Buggy support for indexed colors on Windows (causes random loss of transparency)

Perhaps the problem is Windows-specific.

Buggy support for indexed colors on Windows (causes random loss of transparency)

Appears to be an issue with realesrgan-ncnn-vulkan and only on Windows ![image](https://github.com/upscayl/upscayl/assets/11874211/106034e5-01f5-4353-8f39-72003f74218e)

Buggy support for indexed colors on Windows (causes random loss of transparency)

Perhaps. realesrgan-ncnn-vulkan is the upscaler itself, not the model

Buggy support for indexed colors on Windows (causes random loss of transparency)

Wow, thanks for the writeup!