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A second ongoing issue that was not solved with the firmware update, is the inability to run all four QPC channels at once without error. Even so, another problem was discovered where even three, or two channels cannot be run stably, so we must replace the controller. These topics was were discussed with Edwards as well, but the fix is replacing the CPU for the former, and uncertain for the latter. All QPCs with the 4-channel error must be sent back to Edwards so that they can replace this chip , then resent sent back, but this is not possible with supply-chain issues and critical dates for beam. We are pushing to get new QPCs that were ordered last year to arrive sometime in October or November be prioritize in their backlog so that we can replace these controllers and send the defective ones out to be fixed.

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