Problems with Ldview and Lpub

[Max Martin Richter]

First I have no idea about your LPub problem but for your other problem there could be a solution

I also tried to find what type of part the x538c01.dat is but have not ben able to identify it.

I just did a google search and the second or third result showed me a parts list a such a robot.
There the part is called:

"Technic Axle Flexible 26 with Axle 4 and Axle 2 on Ends" - In our library its named as u334.dat
The name is a little bit different. But this doesn't matter.

/Max