I'm getting a reproducible crash in Beta 1 on Linux when I attempt to edit spacing options for C++.
Repro steps:
1) Go to Tools -> Options
2) Go to Languages -> Application Languages -> C/C++ ->Formatting
3) Click the Edit button next to Profile
4) Click on Spacing
5) Click on Spacing -> General
6) Program crashes with the following console output: /opt/slickedit-pro2018beta1/bin/vs: line 50: 1139 Segmentation fault "$VS_LAUNCH_BIN_PATH/$VS_LAUNCH_BIN_NAME"_exe "$@"
It does not seem to crash if step 4 is skipped. I was able to reproduce this with a fresh profile.