SmartCrawl - SEO Checkup seems to be stuck

SEO Checkup in SmartCrawl appears to be "stuck" on previous scan's results. Every time I try to run a fresh scan to see improvments after adjusting settings, the checkup scan starts immediately at 100% and shows the same results as before.

For example, I have added a robots.txt file with the sitemap.xml URL in it to action the Robots.txt recommendation in SmartCrawl, but a fresh SEO Checkup scan still does not reflect that.

All caches have been cleared before each attempt ata fresh scan, and plugin conflict test performed twice.