Since very recently when I quit RStudio in a normal way I am receiving a crash message that RStudio quit unexpectedly. This was not happening before and I did not have to do any upgrades or anything. Is anyone experiencing similar?
I am under the latest macOS Catalina and RStudio 1.2.5033.
Hi, and welcome!
Please see the FAQ: What's a reproducible example (`reprex`) and how do I do one? Using a reprex, complete with representative data will attract quicker and more answers. This question, though, doesn't require one.
I'm not getting this on my Airbook 2015, under R.3.6.3 notarized and RStudio 1.3.820 with the default global options General | Advanced | OS Integration settings, but I saw one other report of similar behavior.
What's does your sessionInfo() show?
Thanks so much for helping with this! What worked in the end is the following:
It is not 100% clear to me what exactly means "the RStudio Global options software graphics", above, but I did change Options > General > Advanced > Rendering engine to Software instead of the default Auto-detect
Interestingly, previously, when I tried to change from Autodetect RStudio crashed. I do not dare to experiment 
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Preformatted text R version 3.6.3 (2020-02-29)
Platform: x86_64-apple-darwin15.6.0 (64-bit)
Running under: macOS Catalina 10.15.4
Matrix products: default
BLAS: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib
LAPACK: /Library/Frameworks/R.framework/Versions/3.6/Resources/lib/libRlapack.dylib
locale:
[1] en_GB.UTF-8/en_GB.UTF-8/en_GB.UTF-8/C/en_GB.UTF-8/en_GB.UTF-8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a namespace (and not attached):
[1] compiler_3.6.3 tools_3.6.3
We're aligned, except, possibly for the graphics card (Intel HD Graphics 6000 1536 MB), which doesn't show.
R version 3.6.3 (2020-02-29)
Platform: x86_64-apple-darwin15.6.0 (64-bit)
Running under: macOS Catalina 10.15.3
Matrix products: default
BLAS: /Library/Frameworks/R.framework/Versions/3.6/Resources/lib/libRblas.0.dylib
LAPACK: /Library/Frameworks/R.framework/Versions/3.6/Resources/lib/libRlapack.dylib
locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a namespace (and not attached):
[1] compiler_3.6.3
Again, there are two R3.6.3 versions, and I'm using the notarized package.
Installing the notarized version, if you installed the other, and using the RStudio Global options software graphics if your graphics device is different may help. Please report back and mark your answer as a solution, if joy ensues, or I'll see if I can get someone in the RStudio shop to look at the issue.
Autodetect might work now that the notarized version is installed, if you want to experiment. Easy enough to revert (says the man who actually hasn't tried it himself.)