Thanks for the file.
I can not replicate the disappearing/re-appearing nor the discontinued snapping options.
The drawing acts a bit sluggish, about 2fps.
Returning to model space takes about 4-5 seconds.
True, that you have to wait when selecting something but then R-Click + Edit Block acts immediate.
Maybe I still have an edge over other users because I run QCAD in 32bit.
You mentioned that you compiled the CE version yourself.
I think that it is time to buy an everlasting single user licence of QCAD pro ...
The price will not and cannot be the issue in view of your building intentions.
Your drawing are in fact 8 views on 8 pages.
True, QCAD does not support XREF's but remind that ifso the content should be loaded and rendered just the same.
I would advice against Hatches in Blocks.
Hatches are intended to dress up your representation on paper, they have no structural meaning while designing.
Best practice so far is to isolate them on a dedicated layer and lock that layer while designing further.
One could even hide them for the time being.
I also have to advice against creating a block of a single brick or tile and then use that several hundred times to construct a wall or a floor.
(For example: A_Gruppe_Einfahrt)
The exact layout of the stones really doesn't matter.
John's Hyslop BHT includes a method by me to construct a herringbone hatching pattern. 244 by 122 or ratio 2 should not be a problem.
The first thing I did was setting just 1 viewport.
2 Viewports require twice the display re-rendering.
Not always twice but you get the picture.
I see no advantage when editing blocks, both viewports will show the block content.
Sometimes your hatching preferences are true overkill.
- Bubbles-01 ... Bubbles are or can be a demanding hatching method. Review John's Hyslop remarks on that.
- Celtic-01 ... At this scale for 15mm OSB. The details are in the range of 6mm for a thing that is 15mm by 6 meters long.
(In perspective that are 14094 individual line segments that make up the pattern)
- ...
Bottom line, keep it simple and to the point.
Regards,
CVH