Some float values appear to be slightly altered when they are input into a float field in blueprints. For example 2.6 will be changed to 2.599999.
Regression: This did not appear to occur in the 4.21.2 release version of the engine
Result: The float value will be changed to 2.59999
Expected: The float value would remain exactly as is when entered
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-75081 in the post.