Spiders on rails - watertight or?

Dang, why do these spider cracks always show up so fast. The board has not made contact with other boards - no collisions. It's always transported in a padded board bag when inside the car. I wonder if it's contact with the zipper.
Question: do the dark strands indicate water is leaking in? There are also some (resin? water?) droplets that are visible around the areas but those could be from resin. Knew this because other areas of the board also have these droplets under the top.
Just 1 or 2 crack lines catch nail tiny little bit.
1st spider
2nd spider
There were also some stress lines around one of the spiders. Cannot feel when running fingers over so must be under the gloss coat. Read somewhere those could be caused by uneven gloss coats that are too thick.

Question: do the dark strands indicate water is leaking in? There are also some (resin? water?) droplets that are visible around the areas but those could be from resin. Knew this because other areas of the board also have these droplets under the top.
Just 1 or 2 crack lines catch nail tiny little bit.
1st spider
2nd spider
There were also some stress lines around one of the spiders. Cannot feel when running fingers over so must be under the gloss coat. Read somewhere those could be caused by uneven gloss coats that are too thick.