Had what exactly?
False LOC?

Can you give more details as requested before too?

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Until we get some more specifics:

Facility is a CAT I/E performance category.

Last inspection - 11/01/2019
Clearances at the low end 20% more than minimums.

No special inspections requested since.

For both you and Viperstick - any other idea if anyone else reported a similar problem when you say that you experienced an issue?
Again - just not seeing anything to indicate a facility problem. Just like there is a paper trail if you write-up the airplane; if an issue is brought to the attention through the proper channels, the facility has to have corrective action which involves a flight check.

In these examples being provided, there is no such follow up.
And facility performance and continuing ground maintenance checks just aren't sowing such problems.
This is leading me to believe that the issue IS NOT truly false LOC signals from the facility but something else in the airplane or the set up.