ID 480280 - Changing colorspace using Set Media Color Transform for many clips freezes Nuke Studio for a few seconds

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Problem summary
Changing colorspace using Set Media Color Transform for many clips freezes Nuke Studio for a few seconds
The more clips you change, the slower it gets

Customer reported version
nukestudio 12.2v5

Customer reported platform
CentOS 7

Steps to reproduce

1) Open Nuke Studio

2) Open project /netshare/support/tickets/slowProject/SlowProject_v001.hrox

3) Open Sequence2, and select all the clips on the timeline, 150 clips

4) Right click>Set Media Color Transform>pick any different colorspace, Nuke studio will freeze, showing no progress bar or any UI updates

Expected behaviour
For the clips to chnage colourspace quickly, or to have a loading bar when it's going to take a while

Actual behaviour
Nuke Studio freezes and is unusable for several seconds

Workaround
Unknown.

Reproduced by support
This bug has been reproduced in:
NukeStudio 13.0v1 - CentOS 7.5, macOS 10.15.7
Nuke Studio 11.2v1 - CentOS 7.5

Earliest version tested
Nuke Studio 11.2v1 - Earlier versions are not compatible with this project
 

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