Compile errors stop displaying in VSCode on Fedora 38

Occasionally, in VSCode, compile errors stop displaying. I'll be getting errors on compile all along (expected, and it compiles while saving using CTRL+S), until they'll suddenly stop. I haven't found any solution, including restarting VSCode and restarting my user session in Fedora. I'm running IRIS locally on Fedora and running VSCode also on the same machine. The only solution I've found is to restart IRIS. It's a solo dev environment and relatively small, so restarting isn't anything but an annoyance.

Are there any known bugs around this or any other solutions?

Here's what I see in the output:

Compilation started on 12/20/2023 11:00:11 with qualifiers 'cuk'
Compiling class classname
Compiling routine classname.1
ERROR: classname
ERROR:  classname.1(16) : MPP5392 : No such method 'SendRequestSync' defined in this class.
 TEXT:      Do ..SendRequestSync(tTarget, tRequest, .tResponse) }
Detected 1 errors during compilation in 0.049s.
ObjectScript
ObjectScript

And with no further changes

Compilation started on 12/20/2023 11:00:39 with qualifiers 'cuk'
Detected 1 errors during compilation in 0.330s.

Compilation started on 12/20/2023 11:00:54 with qualifiers 'cuk'
Detected 1 errors during compilation in 0.016s.
ObjectScript
ObjectScript