Matplotlib and SVG Graph Export Malfunction

[Mikester-Calgary]

Profile Version 4.2.1 in QGIS 3.22
Matplotlib plot library function no longer works and using PyQtGraph plot library creates a SVG graph with a big black square in the upper left corner!

[nicogodet]

I can reproduce the matplotlib error but it seems to be an internal error in matplotlib, not sure I can fix this in profiletool.

I can't reproduce the SVG issue.
A SVG output made with profiletool few minutes ago :

[Mikester-Calgary]

I never had any trouble with that plugin or the exports until QGIS 3.22. I have gone back to 3.18 and everything appears to be back to normal.

[nicogodet]

Which platform ?
You can copy and paste the content of "Help -> About" from QGIS

[nicogodet]

Matplotlib issue fixed with the update of the library in OSGeo4W.