Trap on change mode.

[Gregg Young]

ASM51 and EBNF modes both trap on switch. It does not appear to be anything in the .fte file as ASM works and I have made the ASM51 .fte look basically the same and it still traps.
In Hilit_SIMPLE (h_simple `16)
EColorize *col = BF->Mode->fColorize;

It also has trapped at the beginning of Hilit_Plain (+21) and Hilit_FTE + 24. These are what was being switch from and is probably this line for both:
HILIT_VARS(BF->Mode->fColorize->Colors, Line);

I also noted that switching to the RESOURCE highlighting on the same Plain text file (.trp) simply fails.

This has probably always trap but never been tried before.

[Gregg Young]

The attachments are an example of each of the three traps

[Gregg Young]

OK it gets stranger. I can change the .trp file extension to .a51 or .ebfn and it opens and is highlighted (it isn't highlighted when named .trp. I then tried open in mode with the file named .trp. Doing this cause efte to open an error dialog that says both these are invalid modes. "Invalid mode a51"

[Gregg Young]

This was caused because the menu commands didn't match the name in the highlight file. The trap is caused because something in the original mode is corrupted -- fixed by setting to PLAIN mode which should make it obvious it failed. Error message is on status bar. CS[142]