FW 7.40 – Shadowmount Plus sees folder/exFAT backups, but throwing “Can’t start game or app” on launch. What am I missing?

Hi everyone,

I need some advice regarding my PS5 setup. I'm on FW 7.40 and I recently booted up the console after keeping it turned off for months.

Yesterday, after following some tutorials and struggling a bit, I managed to get the Jailbreak running again. I set up NanoDNS to access the host/cloud setup and downloaded what I believed to be the necessary payloads/apps for game loading:

• etaHEN
• Kstuff
• Kstuff Lite
• Shadowmount Plus

(To be honest, I'm still a bit unclear on the exact differences/roles between kstuff, kstuff lite, and shadowmount, but I gathered they are required).

The Issue: I have test backups in both folder format and .exfat format. I even tested moving folder backups directly to the internal SSD to rule out USB speed/read issues.

• Shadowmount Plus recognizes all of them fine (I can see the game covers and mount them properly).
• However, every single time I try to launch a mounted game from the Home Dashboard, I am greeted with the infamous "Can't start game or app" error.

My Questions:

1. What am I missing or doing wrong in the chain (etaHEN -> Kstuff -> Shadowmount)?
2. Is there a specific mounting order or setting in Shadowmount / ItemzFlow / etaHEN needed for 7.40?
3. Do folder/exFAT dumps require specific patches/licenses, or is this a Kstuff version mismatch issue on 7.40?

Would really appreciate it if any kind soul could guide me through what I'm missing to get these backups running properly. Thanks in advance!