Combining Changeling with Tropicraft, Causes constant buffer overflows, crashing and makes some morphs walk infinitely in one direction. I am pretty sure that the walking in one direction is caused by the mobs AI being active when morphed.

Likely related to #20 and #30. What exact Changeling and Tropicraft versions are you using? What other mods are you using as well, or is it just these two mods that cause the issue?

The morph sliding is definitely related to those tickets. If you are on 1.12 then it can be fixed by disabling the swim animation in the Tropicraft config.

However, the buffer overflows/crashing is a separate issue. Please provide a crash log as it will likely pinpoint the issue.