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

[lu31247703uh18]

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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[Sameer K]

Hey, @lu31247703uh18. Welcome to the Photoshop Community. I'll need more info to help you figure this out. Please share the system info from Photoshop Help > System info > Copy and paste into a text document > Upload and attach here. 

You can install any early versions of Photoshop for the time being to help you get to your projects: https://adobe.ly/3P9fZL8;

Please include a video of how it behaves now. Also, try using Photoshop (beta) from the Creative Cloud desktop app from > Apps Section > Beta Apps. 

Let me know how it goes. 

Thanks! 
Sameer K

(Type '@' and type my name to mention me when you reply)

[lu31247703uh18]

@Sameer K 

[lu31247703uh18]

hey @Sameer K 
There is no attach file button so I will send you the link containing the video of Photoshop behavior and system info
I tried the previous version but nothing changed

https://drive.google.com/drive/folders/1ZloX0gwqptAgvoUY7XCSaEnTcIEiAcus?usp=sharing

additional info:
I found that if the duration of all layers in the timeline is equal, the play via space button cannot be used
for example, if you shorten the duration of any layer, play via space can work