imyourdba
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imyourdba
I did also see this when trying to watch a restore in SQL 2017 CU15 (haven't gotten the newer CU's installed yet).
OMG, I dug deep into the code and found that on line 1971 there is a reference to @MinNumberOfPages = 0 and it turns out that Columnstores show zero pages...
Actually, the Clustered Columnstore work fine as described above, but nothing I do can make the non-clustered columnstore indexes get maintained by the solution. Those are definitely broken.