Lines appearing on photo after layering

[Greebo]

Hi all,

 

Wondering if anyone knows why grid lines appeared on my photo - I created a ghost like image of my daughter for a project about pioneer days in our local area and when creating the layer and reducing the opacity grey grid lines appeared and they are present in the exported photo. I had created a duplicate of the photo, painted her image out in the 'background' photo then selected just her image from the duplicate to place back in as a layer over the background and added some affects in blur and lighting and then reduced the opacity to mimic a ghost like quality, but the lines appear on that layer (just on her 'ghost' self) and are clearly visible in the photo when exported. Is there a way I can correct this?

 

Thank you for your help

Greebo.

[Lee D]

Hi Greebo,

 

Welcome to the forums.

 

Without seeing the file it's hard to say, would you be able to provide a link to the .aphoto file here or send me a link via PM so I can take a look for you.

 

Regards

 

L

[Greebo]

Thank you Lee for your help/messages and time in looking at the file I sent and for providing a solution.
For others viewing this question the problem is created by a bug that has been alerted to the developers already but in my case I could go into the Gaussian Blur live filter layer I had applied and click on the 'preserve alpha' box and that solved the problem - I was able to export the photo with no grid lines visible.
Thank you for helping me to create the photo I wanted Lee D, you're the best! :D