In a packaged game or standalone, if you change map with DFAO enabled the previous DFAO will still be visible. This does not occur in PIE.
Found in 4.19 CL# 4033788, 4.20 CL# 4369336, 4.21 CL# 4613538, 4.22 CL# 4631879
Results:
The DFAO from the previous level where the sphere mesh was placed will still be present
Expected:
Only the current levels DFAO would be present.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-67215 in the post.