[PyMOL] Copy to object on menu forces crashing & compatibility .pse export not working

Dear all,

I am currently using PyMOL 1.8.7.0 and have noticed a couple of issues,
which I have been unable to solve so far.

If I highlight over the "copy to object" line on the action bar in PyMOL
viewer it crashes the program. This occurs on both selections and objects.
I have attempted to work my way through the source code, and see nothing
immediately in fault comparing it to codes found on
https://sourceforge.net/p/pymol/code/4177/

I am also attempting to export .pse files to be compatible with earlier
versions of PyMOL. I am able to save them (supposedly in their compatible
forms), but no one with any earlier versions of PyMOL are able to open
them. This is the error that is seen when attempting to open the .pse file.

Detected OpenGL version 2.0 or greater. Shaders available.
 Detected GLSL version 1.30.
 OpenGL graphics engine:
  GL_VENDOR:   Intel Open Source Technology Center
  GL_RENDERER: Mesa DRI Intel(R) Haswell Mobile
  GL_VERSION:  3.0 Mesa 17.0.7
 Adjusting settings to improve performance for Intel cards.
 Detected 4 CPU cores.  Enabled multithreaded rendering.

Warning: This session was created with a newer version of PyMOL (1.870).
Warning: Some content may not load completely.
ExectiveSetSession-Error: after settings.
 Executive: skipping unrecognized object "" of type 0.
 Executive: skipping unrecognized object "" of type 0.
 Executive: skipping unrecognized object "" of type 0.
 Executive: skipping unrecognized object "" of type 0.
 Executive: skipping unrecognized object "" of type 0.
 Executive: skipping unrecognized object "" of type 0.
 Executive: skipping unrecognized object "" of type 0.
ExectiveSetSession-Error: after names.
ExectiveSetSession-Warning: restore may be incomplete.


Any help would be greatly appreciated!

Many thanks,
Rohan
-- 
Rohan Eapen
Itzhaki group - PhD student
Department of Pharmacology
University of Cambridge
Tennis Court Road
CB2 1PD
rs...@ca...