Cannot invert output signal of LEDControl4 Passive. Running Firmware 5.10 on Profilux II Plus and Profilux Control 5.1.0.0

With LEDControl connected to L1L2 and L3L4 an One LED driver connected to PIN 1 & 2 on LEDControl4 Passive.

Open 1-10V interfaces in Profilux Control, select LEDControl4, Select Invert output signal, select program. Inverse works for about 5 seconds and then switches back to original, will not save!

Help please.