The power source is stable, i used 2 different one, same problem with both.
I havent found any shorts and i double and triple checked the problem zones you found.
For some reason i cant measure my capacitors, i get BS reading if any. It changes every second or every milimeter i move my probe, the resistors are all good i could check them just not the capacitors.
Here i have an error code from the program "usbtreeview". Maybe this can help
=========================== USB Port2 ===========================
Connection Status : 0x02 (Device failed enumeration)
Port Chain : 2-2
Properties : 0x01
IsUserConnectable : yes
PortIsDebugCapable : no
PortHasMultiCompanions : no
PortConnectorIsTypeC : no
ConnectionIndex : 2
CompanionIndex : 0
CompanionHubSymLnk : USB#ROOT_HUB30#4&d584ab0&0&0#{f18a0e88-c30c-11d0-8815-00a0c906bed8}
CompanionPortNumber : 17
======================== USB Device ========================
+++++++++++++++++ Device Information ++++++++++++++++++
Device Description : Unbekanntes USB-Gerät (Fehler beim Anfordern einer Gerätebeschreibung.) comment: this is german for: Unknown USB device (error requesting device description.)
Device ID : USB\VID_0000&PID_0002\5&2EFFDC72&0&2
Hardware IDs : USB\DEVICE_DESCRIPTOR_FAILURE
Driver KeyName : {36fc9e60-c465-11cf-8056-444553540000}\0037 (GUID_DEVCLASS_USB)
Driver Inf : C:\Windows\inf\usb.inf
Legacy BusType : PNPBus
Class : USB
Class GUID : {36fc9e60-c465-11cf-8056-444553540000} (GUID_DEVCLASS_USB)
Enumerator : USB
Location Info : Port_#0002.Hub_#0004
Manufacturer Info : (Standard-USB-Hostcontroller)
Capabilities : 0x64 (Removable, SilentInstall, RawDeviceOK)
Status : 0x01806400 (DN_HAS_PROBLEM, DN_DISABLEABLE, DN_REMOVABLE, DN_NT_ENUMERATOR, DN_NT_DRIVER)
Problem Code : 43 (CM_PROB_FAILED_POST_START)
Address : 2
Power State : D3 (supported: D0, D3, wake from D0)
---------------- Connection Information ---------------
Connection Index : 0x02 (2)
Connection Status : 0x02 (DeviceFailedEnumeration)
Current Config Value : 0x00
Device Address : 0x00 (0)
Is Hub : 0x00 (no)
Device Bus Speed : 0x01 (Full-Speed)
Number Of Open Pipes : 0x00 (0 pipes to data endpoints)
Data (HexDump) : 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 02 ................
00 00 00 ...
--------------- Connection Information V2 -------------
Connection Index : 0x02 (2)
Length : 0x10 (16 bytes)
SupportedUsbProtocols : 0x03
Usb110 : 1 (yes)
Usb200 : 1 (yes)
Usb300 : 0 (no)
ReservedMBZ : 0x00
Flags : 0x00
DevIsOpAtSsOrHigher : 0 (Is not operating at SuperSpeed or higher)
DevIsSsCapOrHigher : 0 (Is not SuperSpeed capable or higher)
DevIsOpAtSsPlusOrHigher : 0 (Is not operating at SuperSpeedPlus or higher)
DevIsSsPlusCapOrHigher : 0 (Is not SuperSpeedPlus capable or higher)
ReservedMBZ : 0x00
Data (HexDump) : 02 00 00 00 10 00 00 00 03 00 00 00 00 00 00 00 ................
---------------------- Device Descriptor ----------------------
bLength : 0x00 (0 bytes)
-------------------- String Descriptors -------------------
String descriptors are not available (because the device has problem code CM_PROB_FAILED_POST_START)