MacOS launcher freezing/hanging

Bugs and Support
1

Hey there Zwiftopia,
For the last couple of weeks I’ve had the MacOS Zwift launcher locking up on me. It seems to freeze and become unresponsive either on the initial post-login screen, or on the next screen. I have attached images of these states with the Force Quit dialog open to confirm.

I have re-installed Zwift a bunch of times. I am on the latest.
I’m Running Sonoma 14.12.

The only way I am able to get the game to launch is if I manually launch the ZwiftSilicon.app (which then requires me to login each time). Doing this is a workaround because it never freezes at all but it’s less than ideal.

How can I dig into this or provide any logs to you that might help diagnose? It’s been running Zwift for years on this machine and never seen this before.

Cheers,
Danny

Screenshot 2023-12-13 at 13.46.18
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Screenshot 2023-12-13 at 13.51.11
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2

If you want someone to look at your logs, contact support and tell them you want to submit log files.

You could also have a look at ~/Documents/Zwift/Logs/Launcher_log.txt and see if there’s anything that jumps out at you.

If you have any cloud sync software or anti-virus software running, turn it off and see if that makes a difference.

It writes to ~/Downloads/ZwiftTemp so if anything might prevent it from writing there, such as full storage, that would be a problem.

3

Did you ever resolve this? Just I’ve started to experience the same this week, and was wondering if you managed to find out the reason for it freezing on successful login

4

Hi @Keith_Franklin and welcome to the forums! Alejandro here from Zwift. Appreciate you used this space to post your query.

While taking a look at your logs, I found that your Zwift launcher is outdated. Please take a look at this article to reset your launcher.

If there is anything else we can help you with, please do not hesitate to write us at support@zwift.com.

5

I actually did solve it for my setup and forgot to report back!
I was trying to do something tricky where I had created a sim-link of my Zwift preferences into my iCloud Drive (so that multiple machines would share and sync setup), however I was also using the iCloud feature where it tries to optimize storage by dropping the downloads of files it thinks are not in use much. This ended up happening to my Zwift library files all the time! So the Zwift app thought the files were there and was trying to load them, but they were empty and so it was hanging all the processes.

Getting rid of the sim-link setup means I haven’t had any troubles since.