Having similar issues with Celsius API imports. If the transaction is < 0.0001, for example, 0.000009490884042, the transaction will not get imported to Koinly via the API. In addition, the API only imports coin amounts upto 4 decimal places. For example, if you earn 0.009870552044 in CEL interest for the week, the Koinly API will import this as 0.0098, which is incorrect. The flow on effect is that you will always get errors with the balance you have recorded via the API in Koinly vs what your balance is recorded with Celsius.
This API imports issue needs to be addressed by Koinly.