Help! v1.6.7 stopped working!

Development Tools IDE 1.x
1

Everything was going well. I was debugging my code, compiling and downloading without any problems. And then on the last try the Due ran the next to the last downloaded program, not the latest I just downloaded. In the download progress log was this:

Open On-Chip Debugger 0.9.0-gd4b7679 (2015-06-10-22:24)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
debug_level: 0
adapter speed: 500 kHz
adapter_nsrst_delay: 100
cortex_m reset_config sysresetreq
Error: unable to find CMSIS-DAP device
Error: No Valid JTAG Interface Configured.

Now it can't find something? And why is it concerned with JTAG? I am not running any hardware connected to the JTAG interface, it it has one. I re-booted my PC running Win10 and cycled power on the Due. Still stuck here.

2

Problem found! v1.6.7 decided to make my Due board into a Uno. Once I selected Due again, all was back to normal. Now I have another microscopic detail to keep track of. Life is good.

3

How on earth did you get it to give you that error message with Uno selected? It definitely was not treating it like an Uno...

Spooky

4

Uno was selected. It decided to switch from Due to Uno on it's own, between compiles.