HAM3-ISI tripped recently and needed to be turned back on. Commissioners noticed that the command buttons were not working anymore.
It turns out that someone ran an SVN update on the following file: /opt/rtcds/userapps/release/isi/common/scripts/HAMISItool, which was to be updated along with new models, screens and scripts, after testing at MIT. Having a model/script mismatch, the command script would be looking for inexistent channels, and fail.
I reverted HAMISItool to -r5830. This script should not be updated from the SVN again, until the latest HAM-ISI update gets propagated.
HAM3-ISI was turned back on with Isolation Lv3 and 01_28 blend filters. Target values were not changed to ensure returning to previous alignment.
The WD plotting software, which lives in the same folder, had stoped working too. It turns out that the related scripts were updated too, while they should not have been yet.
I reverted opt/rtcds/userapps/release/isi/common/scripts/wd_plots/ to -r6477, and the WD plotting software works again.
My bad, I updated the directory before modifying BSCISItool !