In ubuntu 16.04, double clicking on an unconfirmed transaction causes the wallet to crash. The command line then reads:
Segmentation fault (core dumped)
I believe this is fixed now; I was able to reproduce on my windows box, so I just released 1.4.3.3d; if you compile from source please try it.
Otherwise we will have to ask MIP to make a release next.
Windows has been deployed. (I tested this on my local machine and it appears to have fixed it).
Compiling...