Wrong calculation of E-parameter values
The value you see is the cumulative extrusion, in other words the E value in consecutive G-code commands reflect a position of the filament since you started that print.
It is normal that it continuously increases in &quot;absolute&quot; mode.
You should see, at the beginning of the G-code, also a M82 or G90 command, which means &quot;absolute extrusion&quot;. And you should avoid having M83 or G91 later in G-code, which would change an interpretation of E values to &quot;relative extrusion&quot;.
It is more accurate than relative extrusion (which is the mode you are thinking about).
From your print it looks like the printing bed is not properly tuned, probably too far.
Also, it is difficult to see properly, but it looks like you get bubbles in the second part of the print, which are the reason there is an increase of extrusion: hot air pushes too much filament out.
Maybe your granules are not properly dry. It is difficult to tell you more, pellet extruders are more difficult to tune than filament extruders.