Hi
Thank you Logos, after downloading Logos 5.1 for Mac the syriac resources are usable for me, meaning that the font problems are for most part better now.
I am still in a very early stage at my syriac language journey, but I think I know enough to spot an error. I think the development has gone to the right direction, but a person at Logos with mac and syriac knowledge should still play around with several syriac resources, ones that contain pure syriac and ones that are mixed with english.

1st picture on the left the two horizontal diacritical dots that indicate plural are inside the english word.
On the right the horizontal line indicating the silence of the letter nun is alright in the word atton, but is quite high in the word meditta.
There is something wrong with the letter sequence samech and emphatic t. At least I do not recall this kind of ligature. Correct me if I am wrong but I think it is rofl.

I went through quickly some pages of the Syriac Apocalypse and some lines are not totally straight:
