Startup Loading Screen automatically stops before Minimum Loading Screen Display Time

[Conundroy]

Engine version: 4.27.2

Expected behavior:

1. First scene triggers Stop Loading Screen
2. Startup Loading Screen waits for Minimum Loading Screen Display Time to elapse

Current behavior:

1. First scene triggers Stop Loading Screen
2. Startup Loading Screen immediately stops after loading finishes and receiving Stop Loading Screen event from first scene

My solution was to put a branch before the Stop Loading Screen execution, there seems to be a fundamental issue with Stop Loading Screen seemingly ignoring Wait for Manual Stop. This might correlate with #152 also.

[truong-bui]

@Conundroy, 4.27 is quite old now. I'm not planning to maintain UE versions less than 5.3. For the #152 issue, I don't think it's related to the Stop Loading Screen node, but it may be an edge case that only happens in his project.