I ended up writing a script on javascript & React devtools. The script which went through all 160 entries with undefined DateAcquired field, and set it to "VARIOUS". I spent 3-4 hours to write the script, and then script took another 5 hours to run because loading time on every screen is HUGE.
So basically, spent a day to fix the data issue caused by this data import bug on TT side. I'm 95% sure it's on TT side because the form looks normal when I download it from M1 Finance. And also, seems like people in this thread have the same issue with other brokerages.
Intuit, if you wish to compensate me for the time spent fixing it - I won't refuse.
I could share the script with anybody who's interested, but it requires some technical knowledge to use it.
