As pictured, two wandering traders spawned simultaneously in the same spot. They spawned after I returned from the nether portal. MCPE-52873 focuses on the fact that the wandering traders were unable to move, and sure enough, they stayed there 'til they despawned.
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Thank you for your report!
We're already tracking this issue at MCPE-47698, so I will resolve and link this ticket as a duplicate.
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