[BUG] _assert_abort(): 3498 error partialling out; missing values found

[ZhihaoMa]

Bug report

• Stata version: Stata 18.0
• OS: Mac OS 14.2.1
• Package Versions: ftools 2.49.1, reghdfe 6.12.5

Issue Description

Problem Overview

I encountered an issue while running multiple regressions using the "foreach" loop and the reghdfe command in Stata. The code is provided below:

local outcome "Y1 Y2 Y3"
foreach v of local outcome {

reghdfe ln_`v' treated, abs(group_j year) vce(cluster group_j)

reghdfe ln_`v' treated, abs(group_j year group_co_t) vce(cluster group_j)
}

Error Messages

I consistently receive the following error messages:

(dropped 155280 singleton observations)
(MWFE estimator converged in 3 iterations)
_assert_abort(): 3498 error partialling out; missing values found
assert_msg(): - function returned error
FixedEffects::partial_out(): - function returned error
: - function returned error
r(3498)

Additional Information

This issue did not occur with every execution but has become more prevalent recently. I tried to reinstall the command and restart Stata without success. The only temporary solution I found is to reboot the computer.

Please advise on potential solutions or debugging steps. Thank you.

[JingYeLuck]

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