Hello Saaraunsh - That is very unusual for all the changes on a table to be lost if you are saving regularly. Best practice is to select save before moving on to other tables and when you select save to wait for the spinning circle to complete in the dataset preview before moving on.
When you ask if check in regularly, can you expand on what that means? For example daily? Or multiple times a day? Depending on the work and your environments calculation times would be very dependent on the answer to this question.
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