Why am I getting an error using the new Topaz sharpen tool. It says the output is too large.

I’m trying to use the new AI Topaz Sharpen tool, and it gives me the error saying: “Output too large. Try a smaller scale or reduce the image size”

I shoot in 60MP RAW. So to use it, I really need to reduce my resoution first? WTF? I’m not trying to upscale anything. Just sharpen.

So… what is the maximum resolution of a photo I can use this tool on? That would be helpful information in the error message. Just saying...