play function in timeline window cannot be used via shortcut (space)

Photoshop 26.2
Windows 11 Home 24H2
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----Basic steps to reproduce the problem----

1. Open Photoshop software
2. create a new document
3. open the PSD file with the source prepared in advance with Bridge
4. copy from the PSD file with the source of 5 layers including Color Fill, Smart Object, gradient, Smart Object, Smart Object
5. change the parameters with transform
6. use the ctrl+e key combination to merge the copied layers
7. copy from the PSD file with the source including Group, Text, Flat layer
8. create a smart object from the copied layers
9. rasterize the smart object just created
10. copy from the PSD file with the source including 2 groups, smart object
11. go to window/timeline
12. press the Create Video Timeline button
13. Press the space bar to play the video

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Expected result: timeline running 

Actual result: nothing happens

Additional information:
files completed before update 26.2 can use the play function normally
newly created files cannot perform the play function
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