Bug when using "U offset" with a fill mode - value is not retained

[cmidgley (Chris Midgley)]

When U axis is enabled (device settings, “Enable U axis”), you can change the “U offset” value on a layer (under the Advanced tab). If the layer type is “Line” the value is correctly saved. If the layer type is “Fill” or “Offset Fill”, then the value entered is lost (opening up the layer right away again will show the previous value).

I am using version 1.3.01 of LightBurn.

Steps to reproduce:

1. Open device settings and turn on “Enable U axis”
2. Create a couple of shapes, and assign one shape to layer 0 and the other to layer 1
3. Edit layer 0, set mode to Line, and in the Advanced tab change “U offset” to a value such as 10, and click OK
4. Edit layer 0 again, and verify that the “U offset” retains the value 10.
5. Edit layer 1, set mode to Fill (or Offset Fill), and in the Advanced tab change “U offset” to a value such as 20, and click OK.
6. Edit layer 1 again, and notice that the “U offset” has reverted to 0 (this demonstrates the bug).

Workaround 1:

1. Edit a Fill or Offset Fill layer
2. Change the Mode to Line and set the “U offset” value.
3. Close the dialog
4. Edit the layer again, and change it to “Fill” or “Offset Fill”
5. The layer will retain the correct “U offset” value.

Workaround 2:

1. Open your LBRN or LBRN2 file in an editor
2. Hand edit the for the layer, and change the value to the desired value.
3. Open the file in LightBurn and the settings will be correct.

[berainlb (PY)]

I can’t reproduce this exact bug on 1.4 beta but get something similar.

@cmidgley

6. Edit layer 1 again, and notice that the “U offset” has reverted to 0 (this demonstrates the bug).

I can’t get this to happen.

What happens instead:

1. U offset can only be set when mode is Line. All other changes are ignored when set to Fill.
2. Reverting from Fill to Line allows me to change the value even if swapped back to Fill after.
3. U offset never disappears.
4. I don’t get any cross layer effect in any case that I can see.