Preview "Play Slide" doesn't work in CP2019

[rugguy99]

When I try and preview different timeline actions I have found that Menu/Preview/Play Slide does not work. The timeline runs but does not show the objects or associated timings. 

Serached but did not find asnwer.

Details

Chrome Version 81.0.4044.138 (Official Build) (64-bit)

Win10 Ver. 1903 with plenty of power

Captivate 2019 Ver. 11.5.1.499

[Lilybiri]

Play slide is NOT a preview method; it is only meant for editing reasons like synchgronizing. That has always be the case, not only in this version. It is too bad and confusing that it is under the button Preview.