I feel as though the installation is so straight forward that people aren’t following the directions in their book very closely and just briefly glancing at them.
The reason why this is such a common occurrence is this diagram in the printed manual:
The book is very nice, i really enjoyed assembly, but this isometric view is causing problems
The previous page says “make sure the modules are in the notches” or something to that effect, but it doesn’t really show a clear picture of the step, outside of the circled blue holes on the mini diagram.
Clearly they ran into problems with many people installing it wrong, because they have taken the time to modify the online publication of the manual.
The previous page also had a revision, which more clearly shows the rails sitting properly in the base…
the page previously looked like this:
