OxyPlot used in the application was not loaded after clicking back button from the next screen

GITAM 3 years ago in API 0

A click in one item of fragment in the left pane triggers another fragment in right pane with many items each with OxyPlot in them. On selecting one of them, it goes to the next view of that item and when clicking back, the selected item in left pane loses focus but displays right pane with items and the items in right pane don't have OxyPlots. I would like to know possible reasons for it and how to resolve such issue.