Weird Envelope Deform. LPE behavior

[Pablo Trabajos]

On the attached file having a group (1) with a deformation LPE produces a strange behavior:
-The resulting object only has horizontal bars.
-When moving the result it spits a message to the terminal:
** (inkscape:12717): CRITICAL **: void Inkscape::LivePathEffect::Effect::addHelperPaths(SPLPEItem*, SPDesktop*): assertion `SP_IS_PATH(lpeitem)' failed
...and it doesn't show the handlers or moves correctly.

Steps:
   1- Make a copy of 1.
   2- Copy the LPE from 2.
   3- Paste the LPE from 2 over 1. It should give a result similar to 3.
   4- Drag the resulting object and watch your terminal for messages!

[Maximilian Albert (cilix)]

There is a bug in the recent changes to helperpath code, of which this message is only one visible manifestation. I will look into this.
(Stupid question regarding your description: how do you copy & paste the LPE?)

[Pablo Trabajos (pajarico)]

>(Stupid question regarding your description: how do you copy & paste the LPE?)
Ctrl-C with the original LPE selected (2 in the example) and then select the target object and paste it from Path->Path Effects...->Paste Path Effect

[Pablo Trabajos (pajarico)]

Is this solved now? I can't test it in Linux and on Windows XP inkscape (r21627) crashes when opening/importing/previewing the file attached above.

[ScislaC (scislac)]

I cannot even get this file to open with it crashing Inkscape. Via GUI it freezes when I attempt to click on the file in the "Open" dialog. Via commandline it emergency saves before the GUI is constructed.

[jazzynico (jazzynico)]

Reproduced on Windows XP, Inkscape trunk revision 12481 (the file now opens correctly).

[Alvin Penner (apenner)]

running Windows XP and Inkscape rev 12472. not sure whether to split this into two separate bugs or not.
- I can confirm the lack of handles, but not the crash.
- the copied object (#3) has no dotted bbox and no handles, but it can be selected with the mouse and it can be dragged with the mouse and it can be moved with the arrow keys on the keyboard.
- when following the original instructions for copying and pasting and dragging, I did not get any error messages on the console.

[Jabiertxof (jabiertxof)]

Seems fixed in current trunk r14968 on debian stretch

[jazzynico (jazzynico)]

Confirmed fixed with rev. 14968 on Windows XP (32-bit).

[jazzynico (jazzynico)]

Error messages fixed a long time ago (not even reproduced with 0.47).
Missing bars reproduced with 0.48.4, but fixed in 0.48.5.