Thanks for the prompt feedback, I'll give temporarily rasterising the layer a try!
Do you happen to know how this will work with an exported pdf, if at all? The file is a gaming map that i want to share in pdf format, so others can use it. Meaning I won't be able to remotely manage their print settings, it'll be up to them. The target print output is A0, so rasterising elements is suboptimal from a file size and quality point of view.
Out of curiosity, what were the boxes you noticed between objects? Do you know if i can replicate those, or what to look out for? Is there anything I can do to the file to minimise these kind of print artefacts? I confess I've just focussed on drawing it, not how it will print, so far.
Thanks for passing this to the devs too.