The current implementation of obs_properties_remove_by_name corrupts the obs_properties_t object whenever it is called on the first or last property in the list. This leads to rapid unscheduled disassembly, and therefore must be fixed in order for this function to be used.
Fixed by upstream PR https://github.com/obsproject/obs-studio/pull/2257.
The number of files in the source directory was a little bit much and just made file naming more complex than it had to be. Therefore all files were moved into subdirectories where it matters.
Filters now reside in source/filters/, Sources in source/sources/, OBS Wrappers in obs/, OBS GS Wrappers in obs/gs/, Transitions will reside in source/transitions, Graphics Helpers will be in gfx/.
Michael Fabian 'Xaymar' Dirks