First off, amazing guide and hats off to Lexy and all the folks that have put in a massive amount of effort to create.. My first time thru the guide and at the Trees and Flora Merged section and hit my first bump. Followed the post merge information; found errors, deleted, redid. But I also saw Volrian's post #10903 that stated zedit isn't sorting the master ESM's incorrectly and the advice was to manually add Update.esm as a master to YAWTO - Aspens.esp. Checked it in sseedit and redid the merge using Clobber to see if that would also fix the errors in the merged esp. It did not so reading more of Volrian's post I went to mator's github to check known bugs and to see if the ESM order issue had been reported yet and I found bug #119 Bethesda plugins don't get added to load order unless user re-visits the plugins tab and makes a change #119https://github.com/z-edit/zedit/issues/119 Per mator this is a known issue with the master ESM's sorted incorrectly when using the Clobber method that appears to have been fixed in the Clean method. There is a Clobber method workaround: User workaround: Toggle a plugin on the plugins tab on/off. which I have confirmed works (at least for me). Trees and Flora Merged no longer spews errors when using this workaround and the load order within zMerge is corrected in the log. If someone can verify this works, maybe this should be added. Again thanks for the amazing effort and hope this helps..