Memray ERROR: Invalid record subtype when creating new Thread in v.1.13.4

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

_No response_

### Expected Behavior

_No response_

### Steps To Reproduce

1.os is linux
2.run with command :memray run -f --follow-fork -m my module
3.Before creating a new thread, memray can analyze the profile file normally. After creating a new thread, memray summary/stats/flamegraph, etc. will prompt ⠋ Computing statistics... ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 0% -:--:--Memray ERROR: Invalid record subtype

### Memray Version

1.13.4

### Python Version

3.7

### Operating System

Linux

### Anything else?

_No response_

No source files or tests are named. Reproduce on Linux with Memray 1.13.4 and Python 3.7 using `memray run -f --follow-fork -m my module`, comparing analysis before and after a new thread is created; done means summary, stats, and flamegraph complete without an “Invalid record subtype” error.

Written by the indexing model from the issue text.