Steps to reproduce:

1) Download and open the project attached by me "probesTest.zip" (I made a simple project, because it's easier to see the differences).
2) Open scene test1 and wait until all reflection probes will be built.
3) Go to Edit >> Project settings >> Player >> Other settings, change rendering path from 'Forward' to 'Deferred' and check how reflection looks distorted
in Scene view.

Reproduces with all versions

Note: same result you can see in attached Forward.png and Deferred.png files.