Automatical displacement of objects

I am now making a map with LibreDraw, however, many objects had shifted after saving the file without any actions from me

For example, the original thing by me is shown below, the yellow circle align with the white one behind it (the one above)
However, the yellow circle automatically shifted after saving, making it not longer align with the white one (the one below)

Can anyoen identify the reason and tell me how to prevent such cases?

OS name, exact LO version, save format?
Do you set alignment constraints on groups of objects? How do you structure (group) your drawing? Do you apply styles (for stability and predictability)? Is an alignment grid active?

Is the 16 in a circle a character? Try converting it to a curve, it should then stay aligned.

See this similar question, PDF Export changing the original document for apparently no reason

Yes, it is a character. I know converting it into a curve fixes it, but does that mean all my characters should be converted into a curve? It should display it properly, regardlless of this process.

Only where it is causing alignment issues and until tdf#164240 is fixed

Please note that this is a different question and I was asking the original poster of this question

My bad. I received an email to the other thread, but now it seems your comment is in this thread. That confused me.

Windows 11
Version: 25.2.4.3 (X86_64)
I didn’t group the white and yellow circle nor apply special styles on it

Please attach the file (or send it through a private message if you prefer) to see if grouping and alignment can improve the result.

the 16 is typed inside the yellow circle

I assume it the “label” of the circle, not an independent text box. Thus it remains always centred. Tou could select this yellow circle and the black one, align them on their centres and make them a group so that the constraint always applies.

I cannot reproduce, could it be accidental move of one object?
DisplacementOfObjects124315.odg (16.6 KB)

Version: 25.2.3.2 (X86_64) / LibreOffice Community
Build ID: bbb074479178df812d175f709636b368952c2ce3
CPU threads: 8; OS: Windows 11 X86_64 (10.0 build 26100); UI render: Skia/Raster; VCL: win
Locale: en-NZ (en_NZ); UI: en-GB
Calc: CL threaded

osaka.odg (85.8 KB)
sorry for being late