u/Alternative-Name7782

Hi, i have a fairly old sewing machine that was running great, one day the needle broke and i went and bought the same exact needle and now the machine isnt working properly, ive checked my threading, my bobbin, cleaned her and tried different stitches but it bunches uo thread underneath the fabric, its enough so i can just pull the fabric and it works fine but it limits my detailing im able to do, i dont know what to do with her, im fairly certain its the needle but i bought the same everything and it still doesnt work 100%, the sewing speed doesnt seem to matter either.

if anybody has any idea the problem or solutions please let me know, sewing is my passion and i cant afford new machines