v. 26, Windows 7

I'm having trouble with the Smartshape feature which is why I upgraded this week.  But I'm still seeing problems with the new version.

The crescendo and decrescendo hair pins are drawing as just straight lines.

When I try to attach things to note heads, sometimes it works and sometimes that feature just won't turn on until I reboot.

Question:  Should I get a new computer for Christmas or is this a bug in the software?

Can someone with Windows 10 or something more current let me know if they are also seeing these bugs?