Latest VSCode 1.67.1 Run and Debug C++ application using CMake doesn't produce any program `cout` output in Debug Console - visual-studio-code

Question

Starting the Run and Debug session the first time (CTRL + F5) when the VSCode is first started up, I only see this in the VSCode Debug Console. I expect to see all the cout output but there is none. The program cout output only shows up when running it the second time onwards. What's the difference? Isn't it weird?
=thread-group-added,id="i1"
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Warning: Debuggee TargetArchitecture not detected, assuming x86_64.
=cmd-param-changed,param="pagination",value="off"
Stopped due to shared library event (no libraries added or removed)
Loaded '/lib64/ld-linux-x86-64.so.2'. Symbols loaded.
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Breakpoint 1, main (argc=1, argv=0x7fffffffd988) at /usr/src/MyProgram/MyProgram/MyProgram.cpp:11
11 {
Loaded '/lib/x86_64-linux-gnu/libtbb.so.12'. Symbols loaded.
Loaded '/lib/x86_64-linux-gnu/libstdc++.so.6'. Symbols loaded.
Loaded '/lib/x86_64-linux-gnu/libm.so.6'. Symbols loaded.
Loaded '/lib/x86_64-linux-gnu/libgcc_s.so.1'. Symbols loaded.
Loaded '/lib/x86_64-linux-gnu/libc.so.6'. Symbols loaded.
[New Thread 0x7ffff7363640 (LWP 11113)]
[New Thread 0x7fffeffff640 (LWP 11114)]
[New Thread 0x7ffff6f62640 (LWP 11115)]
[New Thread 0x7ffff6b61640 (LWP 11116)]
[New Thread 0x7ffff635f640 (LWP 11117)]
[New Thread 0x7ffff6760640 (LWP 11118)]
[New Thread 0x7ffff5f5e640 (LWP 11120)]
[New Thread 0x7ffff535b640 (LWP 11122)]
[New Thread 0x7ffff4f5a640 (LWP 11123)]
[New Thread 0x7ffff5b5d640 (LWP 11119)]
[New Thread 0x7ffff575c640 (LWP 11121)]
[New Thread 0x7ffff4b59640 (LWP 11124)]
[New Thread 0x7ffff4758640 (LWP 11126)]
[New Thread 0x7fffefbfe640 (LWP 11125)]
[Thread 0x7ffff4758640 (LWP 11126) exited]
[Thread 0x7fffefbfe640 (LWP 11125) exited]
[Thread 0x7ffff4b59640 (LWP 11124) exited]
[Thread 0x7ffff4f5a640 (LWP 11123) exited]
[Thread 0x7ffff535b640 (LWP 11122) exited]
[Thread 0x7ffff575c640 (LWP 11121) exited]
[Thread 0x7ffff5f5e640 (LWP 11120) exited]
[Thread 0x7ffff5b5d640 (LWP 11119) exited]
[Thread 0x7ffff6760640 (LWP 11118) exited]
[Thread 0x7ffff635f640 (LWP 11117) exited]
[Thread 0x7ffff6b61640 (LWP 11116) exited]
[Thread 0x7ffff6f62640 (LWP 11115) exited]
[Thread 0x7fffeffff640 (LWP 11114) exited]
[Thread 0x7ffff7363640 (LWP 11113) exited]
[Inferior 1 (process 11090) exited normally]
The program '/usr/src/MyProgram/x64/Debug/MyProgram' has exited with code 0 (0x00000000).