I just wanted to give a warning to pro users out there.
My brand new M4 Max Mac Studio just updated to macOS 15.4 overnight and now my Pegasus2 R8 isn't recognized and gave me all sorts of red lights and cycling issues. It was fine last night running 15.3. Even with the DEXT installed and confirming with tech support that the drivers are correctly installed, they had me put in for a support ticket. When plugged into M2 Pro MacBook Pro running macOS 15.3, there's no issue whatsoever so this is clearly a macOS 15.4 issue and not a cable/hardware issue.
UPDATE #1: I just got off the phone with AppleCare and she recommended I re-install macOS 15.4 from Recovery, but the odd thing is we tried a different port on the Mac Studio and it worked. If you're looking at the back, I was using the far left port and it was having cycling issues. When plugging into the 2nd from left port it's totally fine. Ironically, when plugging in a TB3 PCIe SSD into that far left port, it operates fine, but the Pegasus can't be located.
Hard to tell if it's a macOS compatibility issue or a combination of macOS and Mac Studio. I'll do a re-install of 15.4 on Friday and report back.
UPDATE #2: Promise did a screen-share session so they could run some tests. Everything looks normal.
UPDATE #3: Now the PCIe SSD that was plugged into the 2nd from far left port keeps disconnecting from the Mac Studio. I tried it in my CalDigit TB3 dock and it's doing the same thing. Something screwy is going on with the TB ports on the Mac Studio after upgrading to 15.4.
My brand new M4 Max Mac Studio just updated to macOS 15.4 overnight and now my Pegasus2 R8 isn't recognized and gave me all sorts of red lights and cycling issues. It was fine last night running 15.3. Even with the DEXT installed and confirming with tech support that the drivers are correctly installed, they had me put in for a support ticket. When plugged into M2 Pro MacBook Pro running macOS 15.3, there's no issue whatsoever so this is clearly a macOS 15.4 issue and not a cable/hardware issue.
UPDATE #1: I just got off the phone with AppleCare and she recommended I re-install macOS 15.4 from Recovery, but the odd thing is we tried a different port on the Mac Studio and it worked. If you're looking at the back, I was using the far left port and it was having cycling issues. When plugging into the 2nd from left port it's totally fine. Ironically, when plugging in a TB3 PCIe SSD into that far left port, it operates fine, but the Pegasus can't be located.
Hard to tell if it's a macOS compatibility issue or a combination of macOS and Mac Studio. I'll do a re-install of 15.4 on Friday and report back.
UPDATE #2: Promise did a screen-share session so they could run some tests. Everything looks normal.
UPDATE #3: Now the PCIe SSD that was plugged into the 2nd from far left port keeps disconnecting from the Mac Studio. I tried it in my CalDigit TB3 dock and it's doing the same thing. Something screwy is going on with the TB ports on the Mac Studio after upgrading to 15.4.
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