Recurring issues after updating to the latest version

[nkubate]

Thanks for all the great work! I have created many fantastic instructions over the years. Unfortunately I now ran into some issues after installing the latest version (which seems to reoccurring no matter which version I use):

1. I get an error message now when opening a file and going to the last page of an instruction: "INSERT MODEL meta must be preceded by 0(ROT)STEP before part (type 1-5) at line main.ldr". Sometimes I can just ignore it, but in other cases LPub3D stalls/ crashes.
2. A more annoying reoccurring issue is that when I want to create (a preview of) a .pdf it suddenly renders my A4 landscape instructions layout in portrait mode skewing the background and messing up the margins. It does the same with print preview. I tried different pages, but they all render in portrait once I want to create a .pdf or print preview, even though the instructions display fine in landscape in LPub3D itself. Have I perhaps checked a general setting somewhere that overrules my project settings?