F-15 C cannot land at Bantumi

[Firebird1955]

Even though the aircraft would spawn normally on the ramp, taxi, and take-off, upon return to the base, the aircraft floats right through the runway, and under water. If you accelerate, the aircraft will go back through and again fly above ground. This was in a MP game in latest Beta 2.5.5. No track file, but was wondering if this has been reported previously and I just missed it in the search. The other person in MP also saw the aircraft sink through the ground.