Why won't the animated vinyl records spin on Djay?

Why won’t the vinyl records spin in Djay?
I haven’t used my Djay app in a long time, perhaps a year. I opened it and now the records don’t spin, and I can’t pinpoint the marker exactly where I want it to go. The music still plays and I can mix it, but without the record spinning I can’t tell what I’m doing.

Can you give some further information so we can better assist you:
* Which djay version do you use?
* Which device do you use?
* Which OS does it run?