attachment failed security check

[Allograft]

Howdy. I tried to upload a picture with a post to an old thread, but I got the above titled error message. Any thoughts? -  It was a .png file of 650-ish kb.

Linkback: https://www.carcassonnecentral.com/community/index.php?topic=5094.0

[Bumsakalaka]

Please copy here a link to this topic.

[wolnic]

I've had it a couple of times with JPEGs, but they worked OK with PNGs. I'd say try a different format.

[Allograft]

http://www.carcassonnecentral.com/community/index.php?topic=3677.0 - 

[Bumsakalaka]

Try to upload that file to google drive and give us that link. We can check that file. Because PNG is plus/minus supported format But there are also different versions of it.

[Meepledrone]

I got the same issue with a few PNG files so far but cound't see a pattern yet. As a workaround I upload the offending image converted to JPEG format.