Z-Suite - first layer gap


I have problem with sticking first layer to the printed part. First layer’s material flow is lower, but problem could be also in Z-Suite height calculation, if my assumptions are correct.
When printing first layer gap set to (for example) 0.5, second layer prints to height 0.79 (added 0.29 layer thickness). But first layer is actually printed to height 0.0 and its height is then 0.29, so second layer should print at height 0.29. The same could be also for layers on top of support.

I print on M300 (non Plus). Could this be corrected in Z-Code.



Do you print only with the layer 0.29? What is the material?
Please pass me both - the zcode and stl files, so I can evaluate the issue.

Kind regards,