FileSink crashes

[wmiler]

SDRangel v3.5.4 (sdrangel64_v3.5.4.7z)
OS: win7-64

Application crashes while generating a sdriq file. Windows reports:
`Problem signature:

Problem Event Name: APPCRASH
Application Name: sdrangel.exe
Application Version: 0.0.0.0
Application Timestamp: 598793f4
Fault Module Name: sdrbase.dll
Fault Module Version: 0.0.0.0
Fault Module Timestamp: 598792f7
Exception Code: 40000015
Exception Offset: 000000000009a622
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 1033
Additional Information 1: e7c0
Additional Information 2: e7c0bbbc8e445e5e37d96a5ebdf48134
Additional Information 3: d7c7
Additional Information 4: d7c7b34d85c05483bbeb88be436499b8`

[f4exb]

Unfortunately this doesn't tell much. I could try to reproduce if you give me the exact configuration of plugins and their settings.

[wmiler]

This doesn't happen on my win7-64 development system. I'll have to play with the laptop and see what is going on.