Samples sometimes stop looping after I import a sample

[nyanpasu64]

Sometimes when I import a looped BRR file (and possibly WAV file too), the sample (and some others) stop looping when I play my song, even when Loop is checked. The only way I know to resolve this problem is to restart my DAW.

System

REAPER v6.15/x64
C700 x64 VST, master (6537217), compiled using VS2019 (compiler v142)