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[aseidel <700896@xxxxxxxxxxxxxxxxxx>]

I also see this problem. OSX Leopard, PPC, Hugin 2010.5.0-4886. It shows
up exactly as Bruno describes, but when picking a different tab , such
as Layout (where I see the Layout tab highlighting and Preview stays
highlighted by the way) nothing happens at all until the cursor is moved
off the Layout tab. Then the crash starts to proceed.

What seems to be related, but perhaps not, is that Hugin runs the FPW as
Hugin starts up fresh if Hugin was previously closed out with the FPW
window open. In other words the FPW showing state is honored. But this
does not make sense when there is no project loaded. One ends up seeing
the FPW window, in an empty state, on top of the Hugin window. Hugin
normally has its FPW button inactive when there is no project loaded.
Therefore the FPW process should have been inhibited. Hugin can crash
under this condition when a project is loaded while the FPW is open in
this condition, sans the overview. (Closing the FPW first is a
workaround.)  FPW acts like it is a separate process. Perhaps it is
reacting to in-progress loading project files when it should be waiting
until the project has completely finished loading.

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https://bugs.launchpad.net/bugs/700896

Title:
  crashes when changing tabs in Fast Panorama preview window

Status in Hugin - Panorama Tools GUI:
  Confirmed

Bug description:
  First time run of this version (Panorama-overview) was OK. Panosphere view was shown in pane to left of fast preview window. Selecting the little 'pin' icon changed panosphere view to separate window. Couldn't see how to switch it back to a FPW pane.
  Second time I run this version, FPW opens after alignment, image briefly shown, then a mangled image appeared, then hugin crashed.
  I ran again from terminal which provided the following;
  (hugin:3157): Gdk-WARNING **: gdkdrawable-x11.c:952 drawable is not a pixmap or window

  Gdk-ERROR **: The program 'hugin' received an X Window System error.
  This probably reflects a bug in the program.
  The error was 'GLXBadDrawable'.
    (Details: serial 35575 error_code 149 request_code 136 minor_code 11)
    (Note to programmers: normally, X errors are reported asynchronously;
     that is, you will receive the error a while after causing it.
     To debug your program, run it with the --sync command line
     option to change this behavior. You can then get a meaningful
     backtrace from your debugger if you break on the gdk_x_error() function.)
  aborting...

  [1]+  Aborted                 (core dumped) hugin

  Unfortunately, the abrt tool deletes the core dump, and not sure at this time how to get around that.
  The binary was built on fedora 14 x86_64.

  Hope this helps.

  Cheers,
  Terry