I don't know the details, but they recently had some sort of a proposal to reduce rewards to block producers and interest for witness voting. Possibly related(?)...

The TRX reduction proposal vote will officially go on-chain on June 10. Unlike what many assume to be a BTC-style halving, this TRX reduction is not an automatic cut based on a time cycle, nor is it some hype. Instead, it’s a deliberate systemic contraction targeting the chain’s incentive structure.