The Woes of Moon Phase 6

As the moon reaches its sixth phase, a peculiar phenomenon occurs:

It becomes an impossible task to construct a sandcastle that doesn't look like it's been attacked by a pack of ravenous raccoons.

Users report a 99.9% failure rate in their sandcastle-building endeavors. Some claim to have seen a ghostly figure lurking in the shadows, whispering "You'll never succeed, mortal."

Experts warn that attempting to build on this phase will result in:

Catastrophic structural collapse
Unpredictable tides
Unreliability of local seagull population
Rampant existential dread

But fear not, traveler! For in the depths of the internet, there exist Phase 7: The Great Rebuild.

Or, for those of a more...adventurous nature, there is Phase 5: The Unsettling Enigma.