Timestretched audio is very noticeable with Reverb applied

I’ve noticed that free warped/time stretched audio produces some strange effects if you then feed it through a reverb, like a “wobbling” sound. Has anyone else noticed this behavior and is there any way to mitigate it?

Depending on how much the audio is stretched, there is always a chance of artifacts. Adding effects generally will increase that possibility. The only way I know to mitigate that is to use a more expensive warp/time stretch tool.