Some caching issue

Good morning fellow experts!
I'm having some issues with my caching while trying to check polling table functionality. Main issue being is that cache isn't getting populated (so I can't really check the polling table). However, the requests and dashboards appear almost immediately after 1st run in the same session / next day (could it be a browser cache also). So, I'm wondering whether it buffers fetched results in the memory or something. Also, I'm wondering what the following message might mean for my fresh polling table (no entries) - "The cache polling SELECT query failed for table POLLING_TABLE_NAME". I think it's because the table is empty. Also, I get the following stats from NQSserver.log - "Query Cache Statistics -- Hits:0(0%), Qualified Misses:0(0%), Unqualified Misses:52(100%)." Does it mean that the cache isn't created, because queries are all different? (even though I run the same queries multiple times with and without drill-downs).
My NQSconfig cache settings:
ENABLE = YES;
DATA_STORAGE_PATHS = "C:\OBIData\cache" 800 MB;
MAX_ROWS_PER_CACHE_ENTRY = 0; // 0 is unlimited size
MAX_CACHE_ENTRY_SIZE = 20 MB;
MAX_CACHE_ENTRIES = 2000;
POPULATE_AGGREGATE_ROLLUP_HITS = YES;
USE_ADVANCED_HIT_DETECTION = YES;
BUFFER_POOL_SIZE =40 MB;
MAX_SUBEXPR_SEARCH_DEPTH = 7;
Thank you for reply! I'm just trying to see what's going on.

Check the C:\OBIData\cache path to see if they are nay files in there, if they are you queries are getting cached. You can also see the cache entries in the Admin Tool.

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