ID 273626 - IDistort node causing Nuke to crash in this particular script

Problem summary
IDistort node causing Nuke to crash in this particular script

Customer reported version
nuke.10.5v2

Customer reported platform
windows10

Steps to reproduce
1. Open Nuke
2. Open customers script
3. Enable IDistort nodes
4. View last node
5. Change frame in timeline
Result: after a few seconds (at most 20) Nuke will crash

Workaround
Unknown.

Reproduced by support
Can repro on 
Nuke 10.5v3 - OSX 10.11.6
553839EA-9A21-46FA-96F4-DE477B66395F
Nuke 10.5v1 - WIndows 8
Nuke 9.0v1 - OSX 10.11.6
4B2DEBBD-7F88-4841-A8BB-F2117CAB8E53

Unable to repro on:
Nuke 8.0v6 - OSX 10.11.6

Expected behaviour
Nuke not to crash

Actual behaviour
Nuke crashed