i have problem incremental crawl doesn't pick changes. setup includes 2 different managed metadata services seperated in 2 proxy groups, each of them set default in different groups. 1 of managed metadata services has 2 proxies, second 1 used proxy-group number two, not default.
proxy-group 1 
proxy-group 2 
both proxy groups share same search service proxy.
in setup, incremental crawl cant seem pick changes, full crawl works fine. work when explicitly set url crawled in next incremental crawl (in crawl log view in ca),
this not termstore update, changing content in field on page.
when delete second metadata service , second proxy service on first metadata service, incremental crawl starts working again.
i cant seem find information in logs on why is.
anyone has idea of why happening, or cant point me in right direction?
thanks.
