I was hoping that with 0.18.15 that the devs had fixed the internal problem that I thought was causing this crash but it seems that it is unrelated.

474.040 Error MainLoop.cpp:1202: Exception at tick 42879928: The mod Resource Highlighter (1.1.0) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event resourcehighlighter::resourcehighlighter-toggle (ID 266)
__resourcehighlighter__/control.lua:362: bad argument #1 of 2 to 'ipairs' (table expected, got nil)
stack traceback:
    [C]: in function 'ipairs'
    __resourcehighlighter__/control.lua:362: in function 'open_gui'
    __resourcehighlighter__/control.lua:419: in function <__resourcehighlighter__/control.lua:414>

save:
https://drive.google.com/file/d/1cqL3_l7oGsvXcq2-SOmYD1BmSWAl3kUw/view?usp=sharing

The problem should be fixed now.

yup it works again, thanks!