Self employed

Just to clarify I am a independent contractor with a contract with client that reimburses for expenses ( turn in an expense report every month with invoice for services) but has counted the expenses as taxable income because they were included on 2022 1099-NEC.  Project was set up in 2 phases : Analysis of viability and Build the Plant.  The first phase was supposed to be far less than a year and would not have continued to next step if not financially feasiable.  Client just made the decision to continue 16months ( Oct 2023) into project.  2022 taxes ( 6 months) into project I deducted 100% of my reimbursed travel expenses.  So are you saying that I can fully deduct my travel expenses up until June 2023 ( 1 year from start of project) or Oct 2023 when the project officially turned into a long term project?  If so either point after that I would lose deductibility of all travel expenses ( miles, meals and lodging) against the reimbursed dollars?