[Issue]: When enabled built-in regional prompting live preview do not gets update till the end.

[Bercraft]

Issue Description

Normally when generating the live preview works fine with any of the
Simple
Approximate
TAESD
Full VAE
modes, whent he regional prompting script is enabled the live preview stops working, updating only at the end of the generation.
there are no error logs.

Version Platform Description

Windows 10 workstation, radon pro w5700, zluda,master branch.

Relevant log output

No response

Backend

Diffusers

Branch

Master

Model

SD 1.5

Acknowledgements

• I have read the above and searched for existing issues
• I confirm that this is classified correctly and its not an extension issue