I have worked a couple days trying to get sil_ipa (1).kmp functioning via keyman-18.0.235.dmg. I have tried multiple different approaches to downloading and installing as suggested in help materials via this support page.
Keyman seems to install fine. SIL_IPA.kmp seems to install and configure fine and is shone as being configured for Keyman in the keyboard drop down menu… but no IPA will come up in either Word or any other word processor. I do have Charis SIL and Doulos SIL fonts installed.
When you say ‘no IPA rendering’ do you mean that when you type sequences such as a<, you don’t get the expected æ but rather just see a< in your document? Can you explain a bit more about what you are typing and what you are getting as an output?