Am I right in saying 6 months ago your were able to show you had both the level of savings (stock of savings) for a loan but also the capacity to repay the loan (regular flow of savings). More recently You've dipped into your stock of savings and the flow of savings have only seen enough to bring the level break to where it was?
If that is the case the only issue is what did you spent the money on?
If it's one off things, a holiday, a new(er) most lenders will be pragmatic and look beyond these little blips and will be more focused on what is typical.
If it's more of a general increase in your cost of living it may be seen by your lender as something that impacts your capacity to repay.