Thanks Mike, this was helpful.

I ended up deleting all files relating to Epson, reinstalling the epson software, and re-installing the printer.
Now it works!

When I hit the print button, nothing happens for a while, and then the message appears. I have seen it before, but just not sure how I got past it. I fiddled with the settings at the time. The error message is attached. Thanks for the Mac link - I will try those.

I am trying to print a 17x40 print that I processed on Capture One 23 on a roll paper on Epson Surecolor P800 from Qimage one. I keep on getting a filter failed error and I tried several times. I am attaching a screen print.

Any help will be much appreciated.
Thank you.

Thanks again. I will try that.

Thank you so much for the detailed response!
Have a great weekend.

Greetings:

I have Qimage One - latest version running on MacBook Pro Max 16 w 64GB.
I have an Epson SureColor P800
I process images from Canon EOS R5 on Capture One latest version.
From there I do noise reduction and/or sharpening in Photo AI.
Next I export to a TIFF file usually with profile set to Prophoto.
Then I open the photo in Topaz Gigapixel and size it to a resolution of 720 ppi
before opening it in Qimage One, using an ICC profile to match the paper.

The part that I am confused is:
1. When exporting from Capture One to a TIFF, if Prophoto profile OK or should I be using something else.?
2. In Qimage One does "Printer manages Color" automatically select the right profile or should I manually choose the correct paper profile?

Thanks.