Missing Data on Some Interpreter Benchmarks

I was looking through some of the history and noticed what appears to be missing data on some of the interpreter benchmarks. Example:

https://pvscmdupload.blob.core.windows.net/reports/allTestHistory%2frefs%2fheads%2fmain_x64_ubuntu%2018.04_LLVM%3dfalse_MonoAOT%3dfalse_MonoInterpreter%3dtrue_RunKind%3dmicro_mono%2fSystem.Text.RegularExpressions.Tests.Perf_Regex_Common.MatchesWord(Options%3a%20IgnoreCase%2c%20Compiled).html

Not sure what happened here?