*Steps to reproduce:*
# Open the attached "ODRTest" project from Google Drive link
# In Build Profiles change Platform to tvOS
# Go to Edit > Project Settings > Player Settings
# If not enabled then enable “Use on-demand resources” setting
# Unfold “Variant map for app slicing”
# Select requirement "variant1: iPad ; Metal2v3" in the "Configured variant names"
# Press "-" to Remove selection from the list in "Configured variant names"
# Observe the Project Settings window

*Actual results:* removing selection from the list breaks Project Settings window UI and "ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection." are spammed in the Console window

*Expected results:* no errors, removing selection from the list should no break Project Settings window UI

*Reproducible with versions:* 6000.1.0b1, 6000.1.1f1, 6000.2.0a10

*Not reproducible with versions:* 6000.0.48f1, 6000.1.0a9

*Tested on (OS):* Windows 11

*Notes:*
* when testing on 6000.1.0a9 active Build Platform should be set to iOS, because "Variant map for slicing" is not available on tvOS for this specific version