Discussion, talk and tips
https://forum.puppylinux.com/
I tried to attach an additional attachment to one of my opening posts (which already has 3 attachments). Wouldn't work. I had to make an additional post in the thread to attach it. 
3 is the max.
Yes this is normal operation of the forum.
Max Limit 3 attachments to a post.
You did the best thing you could do.
Just make a new post to the topic and attach to that post.
Also there is a max size limit per attachment. 512KiB.
If using images,the only workaround I've used is to put the context and images into a pdf and upload that.
wizard
Or use an image-hosting service. I've used both Imgur and PostImages for quite some time.
With these, you can place them in-line with the text. Just wrap the URL with the <image> tags. There's no limit to the number of these you can place in a post, because it IS simply a link....
They even provide the ability for a clickable thumbnail, which will open to the full image size on the hosting site. This is ideal for larger images where you don't want to lose detail.
Mike. 