Originally Posted by
SamSam77
My best hypothesis at the moment is that this wheel is just too weak for my use case. I am not personally that heavy (if anything, I’m light), but I will carry groceries in my rear panniers though nothing crazy heavy as of yet. This has never been a problem for me before, using my old bike (32 spoke wheels). The road quality is decent and I have been staying near the recommended tire pressure (silca.cc calculator).
Assuming it's inconvenient to return the bike to the supplier, I'd be inclined to slacken the wheel off and start again, after checking the rim itself is actually round and true.