Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce RTX 2070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 462.59
Broken: version: 2.93.0, branch: master, commit date: 2021-06-02 11:21, hash: rB84da05a8b806
Short description of error
Cycles render only two frames of animation when all of these functions are enabled: Time remapping (with ratio more than 1), Motion Blur and Persistent Data.
Exact steps for others to reproduce the error
To recreate this problem you need to create animation, set time remapping with ratio more than 1 (for example 60/24), enable Motion blur and enable Persistent data, as you can see in attached file.