[QGIS-Developer] Print Layout continuously crashing

[matteo]

Hi all,

with a very simple layout template (1 point layer, OSM Tile), no fancy
things around, when I try to open the layout after the project has benn
saved and the layout is also saved, QGIS crashes after a few seconds
with this stack trace:

https://gist.github.com/ghtmtt/b2258693f03abd441b726a8d7e534d15

Tested on Debian Sid, with QGIS 3.4 (installed from package), QGIS 3.6
compiled and QGIS 3.7 compiled.

Has anyone some suggestion?

Cheers

Matteo