The 'Creative Chest' does not support being copy/pasted with the new functionality added in Factorio 0.17 as described [here](https://mods.factorio.com/mod/creative-mod/discussion/5cfd5eafd9e222000bc8aff8). The problem should be [here](https://github.com/jodli/CreativeMod/blob/master/scripts/global-util.lua#L444).