Currency does not remain after being switched by customers in the frontend

I’m having trouble because the prices I changed manually don’t stay.
When I change the local currency, it’s forced to use the local currency.

・Auto Detect: Auto select currency (I like it this way)
If I change the currency manually, is there a way to prioritize that currency?

I use the following cache plugin.

・LiteSpeed ​​Cash
However, even if the cache plugin is deactivated, the manually selected currency may not stay and it may be forced to use the local currency.

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