99% odds are that OP didn't properly farm their TIE Bomber, since toons and ships are shown on separate tabs when you have an active project in the Journey Guide. It's the same mistake I made on one account back in like November (and I also made a similar one like a year ago with unlocking JKL where I completely forgot to account for Wedge's ship being a requirement). However, unlike OP I didn't whine about it and accepted that I only had myself to blame for not paying closer attention. Since all of that information IS indeed listed in the Journey Guide in-game. No, it's not just on the forums but that was also an option you could have used to verify you were on track at any point in the past 3 months - ideally at the outset of committing to this project (no need to "sleep on" the forums, just do a quick scan of the post for the specific thing you're working on). As an aside, I should mention the current situation with the Journey Guide is far superior than what we had to contend with for YEARS, where consulting the forums and/or outside sources was our ONLY option - say what you will about the devs but the Journey Guide is one of the changes they've gotten (mostly) right.
Let this experience be an object lesson for you: if you're taking on any big months-long project, to double- and triple- check that you know what ALL the requirements are! Especially for unlocks that require a mix of both toons and ships.