After upgrading to mono 2019-06 the following tests fail on a 32b iOS device in the following configurations:

• AssemblyBuildTarget: SDK framework (release) (Sample run log)(Sample build log) (Sample crash report).
• Release (Sample run log)(Sample build log) Sample crash report).

And timeout in the following ones:

• AssemblyBuildTarget: dylib (debug) (Sample rung log) (Sample build log).
• AssemblyBuildTarget: dylib (debug, profiling) (Sample run log) (Sample build log).
• AssemblyBuildTarget: SDK framework (debug) (Sample run log) (Sample build log).
• AssemblyBuildTarget: SDK framework (debug, profiling) (Sample run log) (Sample build log).
• Debug (Sample run log) (Sample build log).

Interestingly, the Release configuration USING thumb does work and passed. The build logs contain the exact information for the configurations used.

A good test in the don't link or framework-test tests since you might get issues on debug for the BCL test apps which are too large to be executed without linking (debug mode)