Why is my SEO tool showing 'Keyword Cannibalization' for specific pages despite good rank tracking?

Hi everyone, I'm pretty new to content optimization and using SEO tools for my overall search engine optimization efforts.

I'm running into a confusing issue where my SEO tool keeps flagging 'Keyword Cannibalization' for a few specific pages. This is puzzling because our rank tracking for the primary keywords on those pages looks decent, and they actually perform quite well in SERPs.

Here's a simplified example of what the tool reports:

--- SEO Tool Report Snippet ---
Issue: Keyword Cannibalization Detected
Primary Keyword: "SaaS growth strategies"
Conflicting URLs:
  1. /blog/saas-growth-hacks (Score: 85/100)
  2. /resources/startup-growth-guide (Score: 78/100)
Recommendation: Consolidate or differentiate content.

Could someone explain why this might be happening despite good rank tracking, and what's the best first step to tackle this specific kind of SEO tool warning?