What you were expecting to happen, and what actually happened:
I expected to be able to open the guild menu, scroll over to the Shop tab, and to make a purchase like I can do on Mobile. In reality, When I scroll over to the Shop tab, the tab disappears, the navigation bar and the display window shrink to compensate, and I’m dumped to the Ladder tab. When I close the guild menu and return, the Shop tab has returned, but the same issue persists.
How often does this happen? When did it begin happening?
Happens 100% of the time. Has always happened to me on switch as far as I can recall
Steps to make it happen again
Open Guild Menu, scroll using the R button over to the Guild Tab.