Apps not listed from Acer B3-A20 Tablet

This is a Tablet Android 5.1 Acer B3-A20.
Device is detected as B3-A20
Apps are not listed by UAD
I can list apps with adb shell pm list packages

Log file is:
2023-01-27 15:19:02 WARN [C:\Users\runneradmin\.cargo\registry\src\github.com-1ecc6299db9ec823\wgpu-hal-0.13.1\src\vulkan\adapter.rs:1157] Missing extensions: ["VK_KHR_timeline_semaphore"]
2023-01-27 15:19:02 DEBUG [src\core\update.rs:178] Checking for UAD update
2023-01-27 15:19:02 WARN [src\gui\mod.rs:102] Trying to download remote UAD list
2023-01-27 15:19:03 INFO [src\gui\mod.rs:457] -----------------------------------------------------------------
2023-01-27 15:19:03 INFO [src\gui\mod.rs:458] ANDROID_SDK: 22 | PHONE: Acer B3-A20
2023-01-27 15:19:04 WARN [src\gui\views\list.rs:142] No custom selection imported: Le fichier spécifié est introuvable. (os error 2)
2023-01-27 15:19:17 INFO [src\gui\mod.rs:457] -----------------------------------------------------------------
2023-01-27 15:19:17 INFO [src\gui\mod.rs:458] ANDROID_SDK: 22 | PHONE: Acer B3-A20
2023-01-27 15:19:18 WARN [src\gui\views\list.rs:142] No custom selection imported: Le fichier spécifié est introuvable. (os error 2)

The issue is that the Acer B3-A20 tablet (Android 5.1, SDK 22) is detected but apps are not listed by UAD. The log shows the device is recognized and a warning about missing a custom selection file. Start by examining the device detection and app listing logic in src/gui/views/list.rs and src/core/update.rs. Compare with how adb shell pm list packages works. Run the tool with this device to see where the listing fails.

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