Bug/Assert with Reflection Probes

Hi,

I'm getting random asserts when running my game (at least in the editor I still have to check in the standalone build) related to the reflection probe I use to render the reflections of the car. Here's the assert info:

Assertion failed on expression: 'task.rasterData.vertexBuffer == NULL'
UnityEngine.Experimental.Rendering.ScriptableRuntimeReflectionSystemWrapper:Internal_ScriptableRuntimeReflectionSystemWrapper_TickRealtimeProbes()

This issue is particularly annoying because after getting this my framerate drops (even when not running the game). The profiler shows spikes in the Gfx.WaitForPresent function and, for the looks of it, it seems as if the reflection probe is stuck rendering all the time.

I'm not sure what to do about it, any ideas?

Thanks!
Eduardo