SunMoonDaySequenceActor Break on Compile in a chance

After inheriting from SunMoonDaySequenceActor and making some simple edits to it (Figure 3), there is a chance that issues occur after compilation (Figure 1).

I have to delete the SunMoonDaySequenceActor in the level and place a new one to restore it to the normal state (Figure 2).

What could be the cause of this issue and how can I resolve it?

Figure 01 ↑


Figure02↑


My SunMoonDaySequence Blueprint↑