Component: Table - Virtualscroll + Frozen cols broken when scrolling upwards #16581
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Resolution: Help Wanted
Issue or pull request requires extra help and feedback
Milestone
Describe the bug
When using a table with virtualscroll feature and a bunch of frozen columns the vertical scrolling seems broken, especially going upwards.
On the interface you notice a rows jump effect caused probably by a wrong slice offset handled.
The onScrollIndexChange callback is emitting twice going upwards with two different indexes
Environment
Tried both on local environment and stackblitz
Reproducer
https://stackblitz.com/edit/es8wpw-ixccng
Angular version
17.3.12
PrimeNG version
17.18.11
Build / Runtime
Angular CLI App
Language
TypeScript
Node version (for AoT issues node --version)
18.18.0
Browser(s)
No response
Steps to reproduce the behavior
Expected behavior
It should respect the correct offset slice to be renderer on viewport / pre-rendered tolerated items
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