I'm hoping someone out there might be able to help or suggest some tests to try and resolve some very odd QGIS behaviour of late...
Our core GIS team of 4 users has been testing v2.10 prior to roll-out for the remainder of the organization.
In the past couple of weeks we have had some very odd shapefile corruption things happening and are yet to isolate or identify a potential cause...
These have included:
- Editing one line (using the scissor tool to split into two records) and having the resulting records attributes completely replaced by attributes from another geometry no-where near the edited row (spatially or in the attribute dbf)
- Line geometries completely disappear while their attributes get associated with an unrelated geometry
- Line geometry get partially deleted and replaced with a vertice in infinity (line visually extends beyond the dataset and no matter how far zoomed out you never see the end)
The above is happening in a polyline layer, that we did discover has some multi-line geometries..? Perhaps this is impacting... but never saw this issue with v2.8 and the same layer. The layer has undergone MANY save-as's in the past week and many verify geometry checks as we thought invalid geometry may have been the cause...
In another separate layer yesterday, to a separate user (me) i created a layer with approx 30 polygons... adding, deleting some and doing some 'avoid intersection' to remove overlaps. Layer looks fine in qgis, saved and also a save-as to a completely new file but when i load into ArcGIS online (and later is ArcMap as a test) some of the overlaps and deleted objects are still there. Close and reopen qgis, reopen the file and they are definitely not.
The project was created in v2.8 that i was editing in (but had been saved in 2.10).
Does anyone have any ideas/suggestions.
We do still have 2.8 installed as well as 2.10? We have never encountered issues like this when testing other new qgis versions while still running old ones?