Rstudio and QtWebEngine crash on OpenBSD 7.7

Hi,

After sysupgrading from OpenBSD 7.6 to 7.7 GENERIC.MP#0 amd64,
I'm experiencing problems with rstudio-1.3.959p11 and
qtwebengine-5.15.17pl11p2. When I start Rstudio from the command line,
the editor and tabs are visible for a short moment with large distorted
fonts, then crash and leave a blank window (excluding a top menu bar),
and a core file QtWebEngineProcess.core is generated.


$ rstudio
Use of deprecated not thread-safe setter, use setUrlRequestInterceptor
instead.
Use of deprecated not thread-safe setter, use setUrlRequestInterceptor
instead.

#
# Fatal error in , line 0
# ignored
#
#
#
#FailureMessage Object: 0x7139585f0bf0


I'm not sure how to debug this further, any hints are appreciated.

Kind regards,
--
Erwin