[BUG] Unable to open the exported SVG in Inkscape

**Describe the bug**
I exported as SVG a simple schema with just two tables and trying to open that SVG in Inkscape I only see a white file.
I can see the SVG file when opening with a browser, e.g. Firefox.
By the way the generated SVG file is large, i.e. 12MB for just two tables, one area an one correlation.

**Expected behavior**
To be able to open the SVG file with a graphic software.

**Desktop (please complete the following information):**
both in Linux and in Win11