NVDA fails to properly read list of added folders in the properties window for a "library" in Windows

[k-kolev1985]

Steps to reproduce:

1. Go to the "Libraries" folder on the computer.
2. Select one of the libraries and open its properties.
3. In the "Libraries locations" list box, use the list item reading commands of NVDA to read each item in the list.

Expected behavior:

NVDA should read each list item, at least as it is displayed on the screen.

Actual behavior:

NVDA does not read any item and just plays its error sound.

System configuration:

• Operating system: Windows 10 Pro version 1803 (build 17134.81), 64-bit, in Bulgarian with all locale settings set to "Bulgarian".
• NVDA version: next-15211,8a5d09f0.
• Processor: Intel Core i5-4670 at 3.40GHz.
• RAM Memory: 8.00GB.
• Graphics: MSI GeForce GTX-1050TI Gaming X 4G, 4096MB dedicated memory + 4065MB shared system memory, desktop resolution set to 1920x1080.
• Sound Card: Realtek ALC887 at Intel Lynx Point PCH - High Definition Audio Controller.

Other questions:

1. Does the issue still occur after restarting your PC: Yes, it does.
2. Have you tried any other versions of NVDA: Yes, NVDA 2018.1.1 and with it the result is much better, but not ideal. With it, the list items are read, but with a string of random characters before each list item.

Additional notes

I haven't used this functionality of Windows in a long time, but when I did, it was working OK. On inspection of the NVDA log file that I'll attach here, it seams that the new version of eSpeak is partially to blame. If I use another synthesizer, the behavior is the one described in point number 2 in the "Other questions" section above. Even so however, the behavior from point number 2 in the "Other questions" section is not the expected behavior either, so in both cases we have a bug here. NVDA_2018-06-10_12-46-02.log