Mac [BUG] 1.5.6 update won't launch on compatibility mode

[sokokaleb]

Since updating to 1.5.6, SDV won't launch on my 2014 MBP El Capitan (10.11.6) device on Steam: It showed "Running" on Steam, but nothing appears, and then it just closes itself after a few seconds (crash?). Tried restarting, reinstalling the game, switching back-and-forth between normal and compatibility mode, but with no luck. It worked normally on 1.5.5. Any ideas how to solve the issue?

 

[sokokaleb]

Tried running the game from terminal, and found these logged:

NoFpsCap: This feature is not available
setGameMode( 'titleScreenGameMode (0)' )
loadPreferences(); begin - languageCode=
savePreferences(); async=False, languageCode=en
gameMode was 'titleScreenGameMode (0)', set to 'errorLogMode (11)'.
gameMode was 'errorLogMode (11)', set to 'playingGameMode (3)'.
[ERROR] FATAL UNHANDLED EXCEPTION: System.MissingMethodException: Method 'SteamUtils.IsSteamRunningOnSteamDeck' not found.
at StardewValley.GameRunner.Initialize () <0x111684160 + 0x00073> in <filename unknown>:0
at Microsoft.Xna.Framework.Game.DoInitialize () <0x10f737ba0 + 0x00033> in <filename unknown>:0
at Microsoft.Xna.Framework.Game.Run (GameRunBehavior runBehavior) <0x10f737790 + 0x000b8> in <filename unknown>:0
at Microsoft.Xna.Framework.Game.Run () <0x10f737720 + 0x0002d> in <filename unknown>:0
at StardewValley.Program.Main (System.String[] args) <0x105eb5fd0 + 0x000f8> in <filename unknown>:0
logout
Saving session...
...copying shared history...
...saving history...truncating history files...
...completed.

I have another OS X device (2015 MBP Monterey) and it ALSO has the same issue ONLY in compatibility mode; switching it to normal/non-compatibility mode doesn't lead to the same issue. Seems the issue is specific to the compatibility mode in 1.5.6 update?

I can't switch to normal/non-compatibility mode in my 2014 MBP as it's stuck to 10.11 (Catalina); keen to see if there's any workaround or fix to this issue :)

 

[Mr. Podunkian]

Hey, thanks for the report -- we'd seen some people reporting issues with 1.5.6 on Mac, but hadn't had the error log to help us pinpoint it. I'm working on a fix for this now and should have it hotfixed sometime today.