ID 430733 - ImageRead thumbnails not generated upon opening Katana project

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Problem summary
When opening a katana project with multiple ImageRead nodes, some ImageRead thumbnails are not generated.

Customer reported version
katana.3.2v4

Customer reported platform
rhel7

Steps to reproduce
1) Create an ImageRead node.

2) Set the file parameter to an image location.

3) Set the colorspace parameter to "linear".

4) Copy and paste the ImageRead node 5 times.

5) Save, close and then reopen the katana project.

Expected behaviour
All ImageRead thumbnails have been generated

Actual behaviour
Only 1-2 ImageRead thumbnails are generated. 

Workaround
Unknown

Reproduced by support
This bug has been reproduced in:
Katana 3.5v2 - Windows 10
Katana 3.5v1 - Windows 10
Katana 3.2v4 - Windows 10
Katana 3.2v1 - Windows 10
Katana 3.1v7 - Windows 10
Katana 3.1v1 - Windows 10

Unable to reproduce bug in:
Katana 3.0v9 - Windows 10
Katana 3.0v1 - Windows 10
Katana 2.5v1 - Windows 10

Earliest version tested
Katana 3.0v9 - This issue doesn't appear in this version and has regressed

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