Error: Input feed tensor not found in placeholders. on tf2.11 macbook m2

env:

python 3.10

macos 13.2.1 arch: m2

tensorflow-macos 2.11

tensorflow-metal 0.7.1

When I run model.fit from Keras, I occasionally get the following errors:

 I tensorflow/core/grappler/optimizers/custom_graph_optimizer_registry.cc:114] Plugin optimizer for device_type GPU is enabled.

/AppleInternal/Library/BuildRoots/9e200cfa-7d96-11ed-886f-a23c4f261b56/Library/Caches/com.apple.xbs/Sources/MetalPerformanceShadersGraph/mpsgraph/MetalPerformanceShadersGraph/Core/Files/MPSGraphExecutable.mm:626: failed assertion `Error: Input feed tensor not found in placeholders, tensor corresponds to operation: mps_placeholder'