Direct answer
Update before testing Victoria's route. Patch 1.0.9 fixed trial responses mapping to the wrong quest, and Patch 1.0.10 fixed story issues including Victoria ambushing herself and Yorhav not dying correctly after assassination.
What Patch 1.0.9 changed
Responses to Victoria's trials could map to the wrong quest, causing involved characters to leave because the Sovereign appeared to be lying. Advice recorded before Patch 1.0.9 can therefore point to a false failure.
What Patch 1.0.10 changed
The next patch addressed two more Victoria storyline issues: she could ambush herself, and Yorhav could fail to die properly when assassinated. The patch also corrected the description of Victoria's sword while it was in her possession.
What Patch 1.0.11 changed
Patch 1.0.11 closed another assignment conflict that could send a recruited Victoria on Victoria’s Ambush. Update before building a route around that quest state.
Build a clean response table
Save before every trial response, then record the quest it triggers, who remains or leaves, Yorhav's state, Victoria's state, and the sword description. Compare one response at a time.
Frequently asked questions
Why did the game say I lied during Victoria's trials?
Patch 1.0.9 fixed responses that were linked to the wrong quest and could cause that reaction. Update first, then reload the save before the response.
Is the assassination behavior fixed?
Patch 1.0.10 says it fixed Victoria ambushing herself and Yorhav not dying correctly when assassinated.