Hello everybody, sorry fo my bad english please.
I have sql server: 2019 (RTM-CU15) (KB5008996)
Indexes in my databases were very fragmented (60- 90 %)
I created and executed rebuild index task:
Fragmentation of all indexes became ~ 0 %.
I executed rebuild index task again and it started rebuilding of all GOOD (0%) indexes in all tables again.
I don't understand why it's happening , fragmentation is about zero percent.