Krita: the latest version is 3.3.3. Doesn’t install on my system from PPA: Linux Mint 18.3 because it’s based on Ubuntu 16.04. It’s recommended I use the appimage for Linux. So, I downloaded that.

Set it up as recommended.

Starts up ok.

Created a file. Nothing fancy. Saving a pattern. Middle of an otherwise predominantly white image except for the pattern.

Save. (GIF file) - not sure the filetype matters here.

“Could not save”

“Reason: The temporary file xyz is gone before we could copy it!”

I can select the image, copy it, paste it into Pinta, a basic photo editor and save it from there.

Bit of a pain.

Perhaps if I downgraded to what I can install from the terminal, but, it’s a few versions behind the latest: 2.97.

I'm sorry, but saving to gif got broken somehow in 3.3.3. It's fixed again in 4.0 beta 1. Please save to another format and use imagemagick to convert that to gif for now.

Thanks.

Didn't occur to me to try another format.

GIF was just a random pick.

Ain't I lucky, picked what's broke.

I presume it's covered somewhere in some document on
caveats.

Or, not?

Come under rtfm?

(I didn't).

Just tried PNG and JPG.

Both seem to work ok.

I've just tried krita-4.0.0-beta1.1-x86_64.appimage running on Debian 9 and I scribbled something in a layer and tried to save as a .gif file.

It gave me a warning that the image would be flattened before saving, which I acknowledged of course, and then it seemed to save it. However, the saved .gif file was zero bytes in size.

It's getting there

Eek... Please make a bug report so I won't forget about it.

Done:

https://bugs.kde.org/show_bug.cgi?id=390614