I already have 6.8 ready. But same issue.
What I noticed is sometimes installations works well, sometimes it doesn't
For example
If I wipe in sdext completely using 4ext installer and then install the ROM it will boot loop.
But if I reflash the rom again without wiping it will work.
It fools me couple of times, think the issue is solve but when I try again on more time if fails.
I spent my whole day today but no success.
Logcat of bootloop are always different.
I think I should try a different recovery now or a different version of aroma installer script. if not I don't have any other alternative than just hoping slim updates to fix it.