Windows Performance Analyzer fails to load pdb file

Hi,

symbol servers are setup correctly, and it works well with the Microsoft symbol server. WPA loads symbol files successfully and is also able to access the symbol cache (read/write) as set by _NT_SYMCACHE_PATH directory (F:\SymCache).

However, additionally, I'm using the Mozilla symbol server ("srvD:\MozillaSymbolshttps://symbols.mozilla.org/"). One of the modules is xul.dll. The corresponding xul.pdb file has been downloaded correctly. My problem: WPA does not load the symbol file. It says "PDB not found". The following screenshot shows the "Symbol hub" window in WPA at the top, and the xul.pdb file in the explorer:

Why does it say "PDB not found" after downloading it correctly?

In the F:\SymCache\xul.pdb directory, there are already several folders for previous versions of xul.dll, but no new folder is created for the current version.

I've already cleared the symcache completely and reloaded everything but to no avail.

I've used Process Monitor to monitor all xul file accesses by wpa. The following screenshot shows that it successfully accesses xul.pdb. I've included only the last 3 lines. Then it tries to find several files in the SymCache directory. It's expected to fail because there is none yet for the latest version, but I'd also expect that it creates a new one for it.

In WPA, the Diagnostic Console window contains the following lines that show that the pdb file has been found:

SYMSRV: BYINDEX: 0x886
D:\MozillaSymbols*https://symbols.mozilla.org/
xul.pdb
7090B105E0392A764C4C44205044422E1
SYMSRV: PATH: D:\MozillaSymbols\xul.pdb\7090B105E0392A764C4C44205044422E1\xul.pdb
SYMSRV: RESULT: 0x00000000

I have no clue why the symbol file is found - but not found.

Thanks for reading