zvonkorp

Just discovered another bug, this one for dual extrusion printing. I'm not sure if this started with 5.3 but i remember it did NOT happen in 5.21 for sure. The issue is that during dual extrusion printing, despite all the options being enabled for retraction settings with the second extruder, they do not appear in the materials tab on extruder #2 in cura 5.3 Switching back to the print settings for extruder #1 tab makes them reappear again, but not for #2. As a result, on my latest print it's clear that since those settings are no longer available (only for extruder #2 though), that they do not get applied & while printing, extruder #1 will retract & unretract as appropriate during the extruder switching sequence, extruder #2 just stops extruding at the end of it's loop before switching back to one. As a result, the filament is never unretracted and since it's under pressure just continues to extrude all over the print, despite there being configured a 22mm retract & 21mm unretract sequence, the extruder never attempts to do either of those things (only extruder #2) and #1 works fine as it did before. I also was not able to get these settings to appear in the settings page on the materials tab for tis specific material under print settings. The section DOES appear for dual extrusion, but expanding it reveals absolutely 0 options for editing - while the other material does.

I'm also having issues with this version of cura & no others. It appears that at the end of every single layer, or where there is a seam, that an extraction gets placed into the corner which increases in length with each successive retraction. The same file does not do this in 5.2.1, only in 5.3 & it can be seen in the preview window as what is essentially a white spot all over the previewed model that I cannot get to go away no matter what settings I try changing around. I've attached the gcode file that's generated, as well as the model & a picture of the gaps I just described in the gcode preview window. cura 5.3 white spots.3mf cura 5.3 white spots.gcode