Simplfy3D setting with SM2

I have setup S3d as previous posts suggested to run with SM 2. Seems to be working except when a print reaches 99% complete, the printer just stops. The bed and nozzle turn off. The X,Y,Z axis’ do not move (nor home). The screen freezes and the only way to clear this out is to shut the printer off, then on again.

Does anyone else have this issue and what did you do to correct it?
I am attaching my End G-code (which is the same end g-code Luban puts in).

M104 S0 ;extruder heater off
M140 S0 ;heated bed heater off (if you have it)
G90 ;absolute positioning
G92 E0
G1 E-1 F300 ;retract the filament a bit before lifting the nozzle
to release some of the pressure
G1 Z330 E-1 F3000 ;move Z up a bit and retract filament even more
G1 X0 F3000 ;move X to min endstops
so the head is out of the way
G1 Y350 F3000 ;so the head is out of the way and Plate is moved forward
G28 X0 Y0
M84 ;steppers off

Sounds like a known bug in firmware 1.10.0 (see Printing just stoped ). Try upgrading to 1.10.1 or downgrading to 1.9.

Do you have the issue every time?
If so, delete all commentary of your end gcode and try again.
Unfortunately this is a known bug at the last two firmware versions 1.10 and 1.10.1 that prints stop at 99%.

Yes, it happens every time. I will try removing all comment. If that does not work, I will update the firmware.
Thank you for your quick response. I REALLY appreciate that.

Just wanted to update you if any one else has this issue. I deleted all the comment from the ending script and it now works as it should. Thank you for your advise.

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