PPT NDI Hangs on Windows 7 x64, Windows 8.1 As well as Windows 10 x64

[Lakshmikant]

i tried many versions of PPT NDI (like 1.0.4, 1.0.3, 1.0.2, 1.2.1 etc) but any version is not working. only 1.0.3 opens properly but not working. i am using...........
my first pc....
windows 7 x64 sp1 and OBS 27.0.1
all fuction of obs is working perfectally

my second pc....
windows 10 x64 1903 and OBS 27.1.1
all fuction of obs is working perfectally

my third PC
windows 8.1 x64 and OBS 27.0.1
all fuction of obs is working perfectally

please see two attachments

Please help