rstudio 1.2.5042 crashes in my desktop under ubuntu 18.04

I updated few days ago to rstudio 1.2.5042, under Linux ubuntu 18.04, and it crashes after few lines, or even at starting. the R version is R 3.6.3 (2020-02-29).
I do not know what to do. Maybe I had better to downgrade studio

This is the terminal message.
marcello@marcello-MS-7788:~$ rstudio
Received signal 11 SEGV_MAPERR 7f5d0000000f
#0 0x7f5cd7849a4f
#1 0x7f5cd7849e4b
#2 0x7f5cd784a4ce
#3 0x7f5cd2ab2890
#4 0x7f5cd5d2d4c1
#5 0x7f5cd5d169c4
#6 0x7f5cd4b892a0 QQuickWindowPrivate::updateDirtyNode()
#7 0x7f5cd4b899bd QQuickWindowPrivate::updateDirtyNodes()
#8 0x7f5cd4b8ab72 QQuickWindowPrivate::syncSceneGraph()
#9 0x7f5cd4c44fd9 QQuickRenderControl::sync()
#10 0x7f5cd0502ee0 QQuickWidgetPrivate::render()
#11 0x7f5cd0502f9e QQuickWidgetPrivate::renderSceneGraph()
#12 0x7f5cd2f5e7bb QObject::event()
#13 0x7f5cd3ea8fd3 QWidget::event()
#14 0x7f5cd0506acb QQuickWidget::event()
#15 0x7f5cdcf33c88 QtWebEngineCore::RenderWidgetHostViewQtDelegateWidget::event()
#16 0x7f5cd3e6ab3c QApplicationPrivate::notify_helper()
#17 0x7f5cd3e71d30 QApplication::notify()
#18 0x7f5cd2f31e28 QCoreApplication::notifyInternal2()
#19 0x7f5cd2f886a9 QTimerInfoList::activateTimers()
#20 0x7f5cd2f88e81 timerSourceDispatch()
#21 0x7f5cca2ac417 g_main_context_dispatch
#22 0x7f5cca2ac650
#23 0x7f5cca2ac6dc g_main_context_iteration
#24 0x7f5cd2f891ef QEventDispatcherGlib::processEvents()
#25 0x7f5cd2f3078a QEventLoop::exec()
#26 0x7f5cd2f39190 QCoreApplication::exec()
#27 0x55fe1a1e1a7f main
#28 0x7f5cd0e0ab97 __libc_start_main
#29 0x55fe1a1e4dfa _start
r8: 0000000000000010 r9: 000055fe1c84f430 r10: 00007f5c642ae7e0 r11: 00000000000000ff
r12: 00007ffea37b6e88 r13: 00007f5cffffffff r14: 00007f5c601138a0 r15: 00007f5c60133120
di: 00007ffea37b6e88 si: 00007f5c60133120 bp: 00007ffea37b7010 bx: 000055fe1c83ee50
dx: 0000000000000001 ax: 00007f5c60133120 cx: 00007f5c642abc58 sp: 00007ffea37b6c70
ip: 00007f5cd5d2d4c1 efl: 0000000000010283 cgf: 002b000000000033 erf: 0000000000000004
trp: 000000000000000e msk: 0000000000000000 cr2: 00007f5d0000000f
[end of stack trace]
Calling _exit(1). Core file will not be generated.