Hi,
How do you append the data? With queries?
What do you have to do, so that it does work again? Close the db or refresh the link or relink the lists or...?
Although caching usually is a good idea and improves the performance, you could try if Method 2 from this support page helps also with your problem variant.
There are other known causes like this one but that doesn't really fit to your description either.
Servus
Karl
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