Way too many layers in GCode Viewer

Actual layers: 730 - OctoPrint GCode Viewer (and printing): 143318.

Can't find any info on the webs.

Tried different slicers. Using OctoPrint 1.3.12 and OctoLapse 0.3.4OctoPrint_layers

Hallo @Jkjenstad
Maybe a tiny bit more informations: What slicer, start code of the slicer, this gcode file.

Does it also appear with other gcode files and/or slicers?
Does this also happen in safemode?

A lot of questions... I'll do more testing and then return with answers :+1:

Same thing in SafeMode and with Benchy.
Cura 4.3 - 4.4.0 - 4.4.1 and Creality Slicer 1.2.3

Start Code:
M201 X500.00 Y500.00 Z100.00 E5000.00 ;Setup machine max acceleration
M203 X500.00 Y500.00 Z10.00 E50.00 ;Setup machine max feedrate
M204 P500.00 R1000.00 T500.00 ;Setup Print/Retract/Travel acceleration
M205 X8.00 Y8.00 Z0.40 E5.00 ;Setup Jerk
M220 S100 ;Reset Feedrate
M221 S100 ;Reset Flowrate
G28 ;Home
G92 E0 ;Reset Extruder
G1 Z2.0 F3000 ;Move Z Axis up
G1 X10.1 Y20 Z0.28 F5000.0 ;Move to start position
G1 X10.1 Y200.0 Z0.28 F1500.0 E15 ;Draw the first line
G1 X10.4 Y200.0 Z0.28 F5000.0 ;Move to side a little
G1 X10.4 Y20 Z0.28 F1500.0 E30 ;Draw the second line
G92 E0 ;Reset Extruder
G1 Z2.0 F3000 ;Move Z Axis up