While Robinhood was down, markets recovered from losses over the past week inflicted by fears of a slowdown as the novel coronavirus that originated in Hubei province, China continues to spread globally. Per the Wall Street Journal, gains were inspired in part by expectations the U.S. Federal Reserve and other central banks might lower interest rates to stimulate the economy. Monday’s gain of nearly 1,300 points on the Dow Jones Industrial Average was “the most ever in a single session,” CNBC reported.

As CNBC noted, trading platforms run by Fidelity and Charles Schwab also experienced issues last week amid an 800-point plunge in the same stock market index. Issues that plagued Robinhood on Monday, as well as those prior technical issues, may have been sparked by high volumes of trading as investors scrambled to keep up; according to TechCrunch, the company denied that the bug was a result of 2020 being a leap year. Whatever the reason, those on Robinhood (10 million, according to the company) may have thus lost out on the recovery after taking heavy losses.

Last year, Robinhood users discovered a glitch in a feature that allows them to “supercharge” their investing by padding it out with the company’s money; the bug allowed some users to borrow far more than should have otherwise been possible. Some users claimed to have raised six-figure positions from just a few thousand in funds. Previously to that, per TechCrunch, it signed up 850,000 people on a wait list for a no-fee checking and savings account plan that had to be killed after financial regulators said it would fall outside the protection of the Securities Investor Protection Corp.

Robinhood has also attracted negative attention from regulators in the past. The Financial Industry Regulatory Authority (FINRA) slapped it with a $1.25 million fine in December 2019, saying it didn’t give users the best prices on trades from October 2016 to November 2017, but not disclosing how much those users missed out on.