My repository variable also failed yesterday, Thursday April 26. It had been the first occurrence of t his happening since we applied patch 27019889 in our production environment last month. We thought that the patch had worked, but yesterday's failure proved otherwise.

Adding in my info

I have 4 environments (Sandbox, DEV, QA and PROD)

All my environments are single node and not clustered

We are on version 12.2.1.2 for all 4 enviroments, and migrated from 11.1.1.7.140225 - We never experienced this issue when we were in 11g

3 out of my 4 environments failed to refresh the dynamic variables on 04-25-2018

It sounds like others experienced an issue right around the same time/days.

One thing to note - For our QA server we actually turned off the BI server cache

We had turned off the BI server cache on QA to do some testing, and this then issue just happened. This happened to be the only server out of 4 that seemed to be not affected.

As a test, I plan on applying the patch (27019889) from this article in our SANDBOX enviroment

https://support.oracle.com/epmos/faces/DocumentDisplay?_afrLoop=168144305117338&id=2338889.1&_afrWindowMode=0&_adf.ctrl-…

I will also attempt to turn off the BI server cache on our DEV environment (same as our QA environment).

Leaving our PROD environment alone, and will wait for this issue to hit again.

When it does, I can at least see if either A) Patching works or Perhaps turning off the BI server cache would work

I already installed patch 27019889 on all our environments, but this didn't work. It stopped last week.

SR is re-opened again.

We experienced the same again. Happened between 22:05 and 23:20 CET.

Our SR is still under investigation.

Same issue here again in all environments, will contact Oracle again, they'll give us back the same random answer and life goes on