In short, the game thought it was in BG2EE and didn't install BG1 resources when it should have also installed BG1 resources. There are some minor bugs to fix for EET and non-EET versions. (We used a test branch were we made MSFM familiars EET compatible.)
Greetings, @Renegade0!
Testing today yielded these results: https://docs.google.com/document/d/18a_r7w4EycA0I_YVMuZemmBEbk7tUo8i6y_rFfCF6ao/edit
In short, the game thought it was in BG2EE and didn't install BG1 resources when it should have also installed BG1 resources. There are some minor bugs to fix for EET and non-EET versions. (We used a test branch were we made MSFM familiars EET compatible.)