Tvheadend

While seeking over the end of the timeshift buffer tvheadend freezes and I have to to kill tvheadend process.

Seeking before beginning works.

Last three line from log:
2015-08-14 23:44:48.000 [ INFO] mpegts: 498MHz in Kabel Deutschland - tuning on STV0367 DVB-C DVB-T : DVB-C #0
2015-08-14 23:44:48.000 [ INFO] subscription: 0011: "epggrab" subscribing to mux "498MHz", weight: 4, adapter: "STV0367 DVB-C DVB-T : DVB-C #0", network: "Kabel Deutschland", service: "Raw PID Subscription"
2015-08-14 23:44:48.700 [ ERROR] timeshift: ts 1 could not read buffer

Timeshift config looks like (~/.hts/tvheadend/timeshift/config):
{
<-->"enabled": 1,
<-->"ondemand": 0,
<-->"path": "",
<-->"unlimited_period": 0,
<-->"max_period": 10800,
<-->"unlimited_size": 0,
<-->"max_size": 8500,
<-->"ram_size": 8500,
<-->"ram_only": 1
}


Client is Kodi v15.1-RC1 (Windows x64), same behave on Raspberry with Openelect OpenELEC 5.95.3. Log with timeshift trace is attached.