ID 388735 - Render error when adding a Tiled Procedural in OSX

Problem summary
Render error when adding a Tiled Procedural in OSX

Customer reported version

3.4v2

Customer reported platform
10.13

Steps to reproduce

1) Open Mari and the example head project 

2) Go to the Layer stack and add a Tiled Procedural layer 

result: Render error

Expected behaviour
To display the tiled layer as expected

Actual behaviour
Render error when adding a tiled procedural layer 

Workaround
Unknown. 

Reproduced by support
This bug has been reproduced in:

3.4v4 - OSX 10.13.6

3.4v2 - OSX 10.13.6

3.4v1 - OSX 10.13.6 - regression

Unable to reproduce bug in:
3.3v1 - OSX 10.13.6

Earliest version tested
3.3v1 - This issue no longer appears in this version and has regressed