First layer generator inserting T0 even when removed

[Eliminateur]

Using the "first layer" calibration, with "Remove T0 from gcode" checked it ONLY removes T0 from the first square, but keeps it active across the rest, generating command errors in Klipper

these are the first 10 lines:

; custom start gcode
START_PRINT EXTRUDER_TEMP=205
; square 1
;process Process
;layer 1, Z = 0.280
;T0
G92 E0.0000
G1 E-4 F2100 ; custom retraction
;fan1;

showing suppressed T0

Now on suqare 2:

; square 2
;process Process
;layer 1, Z = 0.280
T0

T0 is uncommented, same as the rest of the squares