Roku Video seeks to wrong position.

Hi,

I'm building a custom player and have an issue where, with seek mode set to "accurate," it sometimes behaves like "default" if buffering takes too long. This is no problem since position that i am seeking close to I-frame anyway.
The Video is supposed to seek to the closest left I-frame (e.g. 30 if seek to 30-35), but in cases of extended buffering, it skips to the next I-frame (e.g., at 36). This occurs very infrequently and is also reproducible in the Roku player.

How to reproduce: Have a known I-frame, seek until video ends. Seek back to known I-frame position. Repeat until it happens :I

Thanks.