First I have used V2.2 and the error happened first time. Cause it was reproduceable, I downgraded to V2.1.3.
Following happens: The base of my project is a .svg-file, produced by Incskape from .jpg . It ist the picture of a home. Cause this ist not exactly horizontal or vertical, I use lines in construction mode, but when I have more than 10 or 15 lines on surface, the program freeces.
This is not my problem, but the programs! After the x-th crash on my desktop-system(Core I7; 12GB RAM; 480GB SSD; Radeon HD 6950 2GB; Win 10) I installed V 2.1.3 on my MEDION 97760 with Win XP.
Re: Frozen program while drawing in construktion mode
I just "produced a new .dxf and tryed to get the error, but it didn´t come.
To the history of files: I took a .jpg from internet and, in the first time, I tryed to convert for use in WinMegacad 3D V13. It took some time to get it, cause there where many wrong ways. Reason may be, that inkscape and libre are new softwares and Megacad isn´t. So it takes not all dxf´s. Sometimes I saw, that my Megacad is to old and/or my ways for conversion are to complecated. I discovered, that inkscape can export directly to dxf after vectorizing. In my memory the describt file is one of them they came from Megacad. May be they don´t match.
My solution to now was to use hor. and vert. lines with a defined high length. But your guess may be right, so I can press this to the trashcan.