I'm not sure how to reproduce unfortunately, but it does happen.
Managed to get it by opening the scanner history right after a TP but couldn't get it again afterwards.
Apparently it is caused by "Without being in an entity and pressing the scan history button causes a nullpointer and game crash." but I can't reproduce that either. Hopefully the logs will help.
```
[2015-06-05 17:34:19] java.lang.NullPointerException
[2015-06-05 17:34:19] at obfuscated.bz.toString(SourceFile:114)
[2015-06-05 17:34:19] at obfuscated.aql.a(SourceFile:234)
[2015-06-05 17:34:19] at obfuscated.aql.B(SourceFile:422)
[2015-06-05 17:34:19] at obfuscated.aql.a(SourceFile:176)
[2015-06-05 17:34:19] at obfuscated.aps.a(SourceFile:53)
[2015-06-05 17:34:19] at obfuscated.apD.a(SourceFile:70)
[2015-06-05 17:34:19] at obfuscated.apP.a(SourceFile:63)
[2015-06-05 17:34:19] at obfuscated.apI.a(SourceFile:307)
[2015-06-05 17:34:19] at obfuscated.apI.a(SourceFile:197)
[2015-06-05 17:34:19] at obfuscated.aqb.a(SourceFile:142)
[2015-06-05 17:34:19] at obfuscated.aps.a(SourceFile:53)
[2015-06-05 17:34:19] at obfuscated.aps.a(SourceFile:53)
[2015-06-05 17:34:19] at obfuscated.aps.a(SourceFile:53)
[2015-06-05 17:34:19] at obfuscated.ard.a(SourceFile:96)
[2015-06-05 17:34:19] at obfuscated.aqF.a(SourceFile:284)
[2015-06-05 17:34:19] at obfuscated.aqJ.a(SourceFile:117)
[2015-06-05 17:34:19] at obfuscated.lP.a(SourceFile:203)
[2015-06-05 17:34:19] at obfuscated.ma.a(SourceFile:226)
[2015-06-05 17:34:19] at obfuscated.hf.d(SourceFile:722)
[2015-06-05 17:34:19] at obfuscated.gK.b(SourceFile:594)
[2015-06-05 17:34:19] at obfuscated.gK.a(SourceFile:399)
[2015-06-05 17:34:19] at obfuscated.aoa.e(SourceFile:781)
[2015-06-05 17:34:19] at obfuscated.aoa.a(SourceFile:1183)
[2015-06-05 17:34:19] at obfuscated.C.h(SourceFile:2307)
[2015-06-05 17:34:19] at obfuscated.JA.run(SourceFile:86)
[2015-06-05 17:34:19] at java.lang.Thread.run(Unknown Source)
```
Full log:{F136}