time2x returns wrong number when used indexBased

[Mohammad-Reza-Karimi]

Describe the bug

i set "indexBased": "true"
and i use custom.navy as custom drawing on chart
when i try this ==> "let x = layout.time2x(timestamp);" it returns very big number like this ==> 5608196711811
even if i set "indexBased": "false" still it returns wrong position ==> 5608197201458
when i remove "indexBased": "true" it returns correct x position ==>125776
but i need indexbased chart

Reproduction

https://codesandbox.io/s/playing-around-7-xyquxe?from-embed

Steps to reproduce

I've added "indexBased": "true" to data-1.json like below and it made the bug because of "let x = layout.time2x(p[0])" in custom.navy , line 30

{
"panes": [....],
"indexBased": "true"
}

Javascript Framework

no-framework (vanilla-js)

Logs

No response

Validations

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• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Make sure this is a NightVision issue and not a framework-specific issue.
• The provided reproduction is a minimal reproducible example of the bug.