RStudio preview fails to render window on Mac OS Mojave 10.14.4 Beta 18E215a

[md0u80c9]

Hi,

I've been using RStudio 1.2 Preview with Mac OS Mojave preview builds and not had any problems to date.

I updated with yesterday's preview (Beta 5) and since then RStudio fails to open the IDE window. Replicated on both an iMac and a MacBook Pro.

I've checked with the latest version of RStudio preview and seen the same results.

Clearly not sure if this is a bug with the Mojave beta, or an issue with the way RStudio renders.

[jmcphers]

What's the exact version of RStudio you're using?

[md0u80c9]

1.2.1206 Exhibited this although I subsequently downloaded the latest version from the RStudio Preview website and this also did this too (don't have the exact version to hand but the one from the website yesterday).

[kevinushey]

If you resize the window a tiny bit, does the UI become visible?

If it does, can you please take a screenshot of the Help -> About RStudio dialog?

[md0u80c9]

No - in fact the screenshot was resized. I can’t pull up the About RStudio dialog - the menus work but no windows open. Best wishes, Andrew

…

On 13 Mar 2019, at 17:04, Kevin Ushey ***@***.***> wrote: If you resize the window a tiny bit, does the UI become visible? If it does, can you please take a screenshot of the Help -> About RStudio dialog? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#4445 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ADvnSi-6jluPxRVHFpPbYmtaHLVMcvRYks5vWS-qgaJpZM4bslSO>.

[jmcphers]

I just updated to 18E215a and I can now reproduce this as well.

[kevinushey]

@jmcphers can you test:

• Can you reproduce with a local build?
• Does the Nano Browser example exhibit the same issue?
• Does removing the wantsLayer = YES flag fix things?

  rstudio/src/cpp/desktop/DesktopGwtCallbackMac.mm

  Line 482 in 19fe182

  view.wantsLayer = YES;

[jmcphers]

• I can reproduce with a local build.
• I can't check Nano Browser because Qt Creator seems completely busted (the interface draws but is unresponsive).
• Removing that line doesn't change the behavior.

It's clear that the interface is actually loading; for example if I move my cursor over it it will change to a hand in some spots. Also, triggering a repaint by right-clicking and choosing Reload, or opening the dev tools, fixes everything.

Unlike the wantsLayer issue, however, this affects every RStudio window -- even the devtools show up blank.

[kevinushey]

Dear lord...

Can we reproduce this in any other Chromium-using application? What about qutebrowser? (Use brew cask install qutebrowser to install)

[jmcphers]

Other chromium-based apps work fine (qutebrowser, VS Code, and Slack). Qt Creator is pretty busted, so I wonder if 12.1 has some compatibility issues to work out...

[jmcphers]

Opened a Qt Creator bug here: https://bugreports.qt.io/browse/QTCREATORBUG-22131

It looks like this is an issue with QtWebEngine from Qt 5.12.1, not just with RStudio (appears to reproduce with nanobrowser). Once I've done some more verification I'll open up a QTBUG.

[ukyoi]

Maybe it's a bug of macOS since it seems only happens on 10.14.4 beta 18E215A. As everyone knows the OpenGL support on macOS is just a mess.

[jmcphers]

Also reported on Twitter. https://twitter.com/DSmilti/status/1106270572676374529

[kevinushey]

The issue appears to affect all applications using Qt Quick with Qt 5.12.x: https://bugreports.qt.io/browse/QTBUG-74452

Hopefully this is an issue that will just go away in the next iteration of the Mojave preview release...

[md0u80c9]

Indeed. I have reported it on bugreport.apple.com and have linked to this issue.

[hemip]

Can confirm this bug running Rstudio preview (v1.2.1326-1 Preview) and was affected when I upgraded my Mac to Mojave 10.14.4 beta today. However, the stable version of Rstudio (1.1.463) is not affected.

[carloscinelli]

I can also confirm the bug for RStudio v1.2.1327-1 - Preview.

[kevinushey]

Can you file a bug report with Apple?

[hrbrmstr]

I submitted as well. Problem ID 48962598 for ref (if needed)

Anyone know which version of RStudio Dailies will work until it's fixed? (I'll start playing "gotta test'em all" for now)

Wow. Had to go all the way back to the ancient 1.1.463. My gosh what is this, the Dark Ages?! :-)

[tyluRp]

RStudio 1.2.1326 now works for me on the latest MacOS Mojave Beta 18E220a. I was running MacOS version 18E215a prior.

[hrbrmstr]

ah! I see that macOS beta update just dropped.

I'm now hesitating since a "console output stalling" issue that I was attributing to my system seems to not be "A Thing" in 1.1.x RStudio and I have no way of even beginning to diagnose/triage/report except to record an animated gif.

[md0u80c9]

I can confirm the latest beta resolves this issue: I'd suggest closing the issue if everyone in agreement.

[hrbrmstr]

same. Apple reverted whatever they broke.

[kevinushey]

That sound you hear is me and the rest of the IDE breathing a heavy sigh of relief. Thanks everyone for testing and verifying!

[jmcphers]

Can also confirm this. Whew!

[ronblum]

Joyously verified.