Roon needing to be launched more than once after upgrade to Tahoe

[Mark_Sealey]

I’ve submitted a tech support ticket - but paste what I wrote here in case the wider user base knows about this and can suggest either a fix, or “not to worry” notice, please:

@Mark_Sealey

Since upgrading to macOS 26 (Tahoe) Roon (2.54 build 1554) sometimes - but not always - needs to be launched more than once (from the Dock). On other occasions, it seems as though there is a brief ‘white flash’ of the Roon window visible on the desktop; and then Roon launches. Once launched and running, everything seems to work perfectly. Thanks!

Is this a known phenomenon, please?

TIA…

I shall cancel the support ticket if others are experiencing it etc… definitely know that duplicate posts are unhelpful!

[jon_brachfeld (jlb)]

I have the exact same issue,when I first click to open sometimes there is a little flash but it does not open ,sometimes I have to clicked it 3 or 4 times to get it to open and then everything works properly afterwards until I ■■■■ it and try to open it again

[Mark_Sealey]

Thanks, Jon!

I think I remember seeing ‘reports’ on Reddit last week after the launch on September 15 (and before I waited the usual ‘few days’ before upgrading to 26) of other apps doing the same.

I checked in the logs and there are no signs of a crash. Everything else is just fine.

I guess the next thing to test is whether this only happens after Roon may have been running and perhaps the server hasn’t yet ended whichever processes it needs to terminate when the app quits?

[Suedkiez (Just a fellow user like you)]

Doesn’t happen to me (using only the Roon client) but I think several other people have reported this, e.g. here:

Roon App won't start after Mac OS Tahoe upgrade (ref#6AS3SC)

Thank you @Mr.Flibble. I have checked all that. But now I had to start Roon 5 times before it kept alive. Roon (maybe the Mono framework) has problems with Tahoe.

It might be a thing that it looks like it doesn’t start but after several tries it might eventually. Maybe this would have been also the case in the thread where you added that you don’t have trouble with Tahoe , but this user so far only reported that it doesn’t start (and maybe it would have eventually, but who knows):

Roon compatibility with macOS Tahoe

Hi running Roon on my Mac mini with the Apple Silicon chip and macOS Tahoe. Roon won’t open. tried reinstalling but same result. Thanks

@Mark_Sealey

I think I remember seeing ‘reports’ on Reddit last week after the launch on September 15 (and before I waited the usual ‘few days’ before upgrading to 26) of other apps doing the same.

Interesting, I haven’t seen any. 26.0.1. is expected in a week or so

@Mark_Sealey

I guess the next thing to test is whether this only happens after Roon may have been running and perhaps the server hasn’t yet ended whichever processes it needs to terminate when the app quits?

Never a bad idea

[Adrian_Flack]

I’m having the same issue, I have to open the Roon app several times until it runs. I’m also losing connection to my Rotel A12 MKii and unable to reconnect after it has

[Mark_Sealey]

Thanks, Mario!

Yes to all your points .

I believe it may also not actually be not ‘launching’ as such; but that some sort of “let’s ‘reserve’ some window ‘space’” routine?

Thanks to everyone who has helped by reporting similar things, I know it’s unlikely to be a fault local to my (brand new and built from scratch) Studio M4 .

[mikeb]

If you open the Console, you might see some messages about why it’s failing to launch.

[Ivan_Zykov]

Same here, need to relaunch the app up to 5 times till it finally lauches. + another problem: ‘Failed to initialize the audio device’ “Lost control with audio device” and other similar messages when i try to play music. My device - Gustard A26. I thought this happens only with DSD files, but it appears not to be file type specific. I have to restart the playback up to 10 times, but after a couple of songs, the problem comes back. Roon is so great, but i can’t use it

[Suedkiez (Just a fellow user like you)]

@Ivan_Zykov

Same here, need to relaunch the app up to 5 times till it finally lauches

Roon requires multiple launches on macOS 26 Tahoe (ref#1MH42G)

Good day @Mark_Sealey ! I hope you’re doing well today. Thank you for reporting this to us! This is a known issue as of now and the fix is about to come soon. As of now the only thing that can reduce amount of crashes on the start is Rosetta Compatibility mode. In order to get it please go to the Apps folder (Cmd + Shift + A from the desktop or finder) and the find Roon, select it and Get Info (Cmd + I). There you will see an option “Open using Rosetta”. If those crashes are critical for y…

[Mark_Sealey]

Thanks again, @Suedkiez - have seen @alex_h’s reply to my support request.

Looking forward to the update .

[Suedkiez (Just a fellow user like you)]

@Mark_Sealey

have seen @alex_h’s reply to my support request.

I know, it was for Ivan

[Mark_Sealey]

@Suedkiez - Yes. But I still truly appreciate your always being there for everyone with your expertise and wisdom!

[Bill_Hibbets]

Downloaded the update fix and I’m still have the same issue.“Lost control with audio device”

[Mark_Sealey]

Bill,

Someone will correct me if I’m wrong - but I don’t believe that today’s update (2.55 build 1559) was intended to fix the issue we’re discussing here.

[user115 (Radek)]

No, it doesn’t seem to have fixed the crashing issues of Roon on Mac. Also, the Dock icon of Roon looks outdated in Tahoe, and Liquid Glass is not supported.

[Chandrashekhar_Bhujb (Chandrashekhar Bhujbal)]

I am also facing same issue after upgrading my MacOS to Tahoe. I need to force quite all Roon process threads and then it launches again.

[stevebythebay (Steve Schaffer)]

This has been the case for me throughout the release 26 beta on my Mac Studio M1 (Roon client). However, not on my other Mac hardware (MacMini M1 running as Roon Server, MacBook Air M3 client, Mac Mini M4 client). All currently on official release 26. So, I’m suspicious that this is some sort of macOS race condition or possibly a Roon timing issue with respect to the OS. If the latter, I’m thinking other non-Apple apps may be experiencing similar “startup” issues.

[Mark_Sealey]

The ‘false’ (or need for multiple) starts have been sporadic for me.

Mostly once or not even that…

But this morning, it took about ten tries.

Is there a known way to prod Roon into starting properly - until the fix is issued?

[stevebythebay (Steve Schaffer)]

I believe, as some others may have found, when using your “mouse/trackpad” to start Roon it’s best to rapidly tap on the Roon icon. That seems to get Roon going. Hope that helps.

[Mark_Sealey]

@stevebythebay

…to rapidly tap…

You mean double-, triple- or multiple clicks?

When I started this thread it was because it appeared that a launch in the normal (that is, single-clicks) in the Dock were ineffective.

Closer inspection suggests a brief ‘semi-launch’ and then a quit/crash.

But a search for ‘Roon’ in the Console reveals nothing.

We’ve had an assurance that a fix is in the works. The only reason for my post today was that a usual second (third, fourth, fifth) try didn’t launch Roon at all, which was more worrying