Stuck on 'creating test cases' for Generated Test Agentforce v1 on the trail Use AI to Generate Tests

for this trail https://trailhead.salesforce.com/content/learn/modules/agentforce-agent-testing/use-ai-to-generate-tests?trail_id=become-an-agentblazer-legend-2026

iget stuck on 'creating test cases...' loading page, even after refreshing. tried creating again and activating the agent and then creating the tests, no luck yet 

did anyone get past this?