Steps to reproduce:
a) open my (rather large) project,
b) go to Main layout
c) select one of the animated sprites (e.g. JAS2100, M1A2) in Objects panel
d) left click in Properties panel in a blank space, e.g. right under the "More Information" line at the bottom
Construct2: R75 Free (64 bit), Business (64 bit)
CAPX sent to Ashley via dropbox.
NOTE: With R75-32 bit version this crash does not occur!