not exact behaviour i can confirm to reproduce…In our poc on dgraph we reading around 20 excel file having 5 to 10 columns and few thousands rows max, through dgraph java client we create node, relation for each row in excel…create node we doing one by one check exists by name then create but relations we create in batch of 1000.
Node property loss problem : sometime all 20 excel gets complete and no issues… If repeat whole process we face issue node property lost issue at 10th excel and sometime at 15th when we restart server in between.
dgraph crashing slice out of range exception behaviour is also random for different queries after processing of 20 excel done then we have UI for graph reads to navigate node relation there it come randomly.
Sorry will not be able to help much on exact reproduce behaviour. If other users also facing then it can get some direction.