Cannot write data

Cannot write data.
But can query

QL
6,sn=ZTCG202405141291,subSn=201 systemfrq=29.36999999999998,uab=30.691 1745890575938

At first, data like this can be written, but after a while, no more writes occur, even though queries are still possible.

No files, tests, versions, or entry points are mentioned. Start by reproducing the transition from successful writes to failed writes while queries still work, then identify the affected write path and document the conditions and evidence needed to verify that writes resume reliably.

Written by the indexing model from the issue text.