NI-DAQmx false duplicate channel error

I have an SCXI chassis w/ a SCXI-1600 and a SCXI-1102 w/ SCXI-1303
accessory. I created a series of NI-DAQmx global channels for
thermocouples, calling them Air Temp0 through 17. Using NI-DAQmx
subvi's I read them. See a very simplified VI attachment.
The channels individually all check out, but when I try to read the
entire group, I get an error -200072 and it says that Air Temp15 and 16
reference the same physical channel, but when I check the channels in
MAX, they are indeed different. Likewise, if you read one at a
time and stimulate the various thermocouples, the displayed response is
always consistent with the physical channel. I.E., if you heat the
right thermocouple, the reading goes up, but if you heat the wrong
thermocouple, the reading doesn't go up.
Using the simple error handler, the error message is:
"Error -200072 occurred at DAQmx Read (Analog 1D Wfm NChan 1Samp).vi
Possible reason(s):
Duplicate channels in the list of physical channels are not supported by this device.
Channel Name: Air Temp15
Duplicate Channel: Air Temp16
Device: SC2Mod2_Mini
Task Name: Air Temp15:16"
Any ideas?
Attachments:
diagnosis.vi ‏59 KB

Thank you for your input. It does seem to have been a corruption of the configuration somehow.
This is one of the things I hate about MAX. The unexplained and
unexplainable corruptions. And then the usual solution:
"Oh, reinstall everything and try again." Grr. This has
been going on for years now.
The station had not crashed or otherwise displayed any
misbehavior. The channels were configured by doing the first one
and then duplicating it using the MAX "Duplicate" feature. I then
made a set of channels by individually programming each one, with a
different name. I then deleted the troublesome channels and then
renamed the new ones to the desired names. Whaddya know, they
work now. Is this a MAX bug, known or otherwise? I have
'way too many other things on my plate to be spending 6 hours chasing
corruptions like this. Virtual Instrumentation is supposed to
save time.

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error2.JPG ‏171 KB

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*** Object defn.s out of sync w/ data
*** Object defn.s out of sync w/ data
*** Object defn.s out of sync w/ data
*** Object defn.s out of sync w/ data
*** Object defn.s out of sync w/ data
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*** Object defn.s out of sync w/ data
*** Object defn.s out of sync w/ data
*** Object defn.s out of sync w/ data
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*** Object defn.s out of sync w/ data
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