Other Parts Discussed in Thread: LM94022
Did not add in post AIN-16 is the last (configured) analog input but there are three more (AIN-17,18,19) on the end (PK1,2,3) respectively that will later be populated LM94022 and an analog control pot. So for now (PK1,2,3) circuit traces are disconnected via 0R near MCU pin or exist within 1/2" from MCU input.
Oddly AIN-16 (PK0) is on same GPIO port as M1/2Fault inputs (PK6, PK7) configured IN direction WPU. Those PCB traces direct couple to analog comparator outputs Co1,Co2 (PD1, PD2) more recently configured for OD direction. That seems to be another possible link to why the new LM94022 is behaving differently than the partially shorted output one. Saying shorted but in reality is 2.9k resistance to ground pin considered a short?
TI-Tina analysis plots of any analog comparator output switching noise may not be enough to trip MnFault inputs. Yet is it plausible switching noise is cross talking inside GPIO port K? and spilling onto AIN-16? Why is this scenario even occurring a more puzzling question but seemingly links to analog comparator being suspect.