Thunderbolt UAD Apollo Twin MK2 with AMD Ryzen showed up in System info>PCI, then disappeared

I use Mojave 10.14.6 with OC 0.5.7

The MSI b450 Pro Carbon AC motherboard doesn't have THB_C. So I got a Titan Ridge 2.0

The pins 3&5 are shorted from the end of the connector. I used “ GC-TITAN-RIDGE-NVM23-Elias64Fr.bin

I used SSDT-DPGT and modified a Gigabyte B550 SSDT and compiled through from HackinDROM. The only changes I made were PT 20->PT24 and GPP1->GPP2 in the SSDT then compiled and enabled in config.plist. As well as the custom TB kext.

After a reboot, some USB devices were off so I force shut down. After booting Thunderbolt appeared in the PCI section of system profiler and Apollo. it showed up in PCI and worked.

After I shut down the system and restarted the Apollo disappeared from PCI section.

Since the I tried warm reboot, boot with Apollo already on. I do have the Thunderbolt showing up in system profiler regardless if the UAD Apollo is detected or not.

Then I did a hardware reset and it works with another MacBook.

When I installed UAD software I updated firmware to latest. Would that be the cause of the interface suddenly not showing up in PCI?

DESIGNARE-Z390-NVM33-Elias64Fr.bin, same booting process and Apollo not showing up. Still only Thunderbolt in PCI.

submitted by /u/benzobird
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